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Wet Ball Mill Design. new design mining wet dry type cement mineral grinding ball mill. Add to Compare . 2017 new design Classifying wet small ball mill Coal Ball Mill for sale.
Mining Ball Mill, Mine Ball Mill, Cement Ball Mill Ball mill is the most widely used kind of grinding equipment. Ball mills are widely used in various types of ores'' benefiion, electricity, cement .
2018-5-24 · cement technological design and cement plant construction. We also supply complete cement equipment, The ball mill working principle 2018-05-23 Rotary packing
2018-11-2 · If finer grinding is wanted two or three stage grinding is advisable as for instant primary rod mill with 75—100 mm (3″—4″) rods, secondary ball mill with 25—40 mm(1″—1½”) balls and possibly tertiary ball mill with 20 mm (¾”) balls or cylpebs.
Cement Ball mill/ Cement Grinding Mill is the key equipment for grinding cement clinker after the crush process, and it is widely used in the manufacture industries, such as cement, silie, new building material, refractory material, fertilizer, ferrous metal, nonferrous metal and glass ceramics, it also can be used for the dry and wet
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The cement mill. Cement manufacturing - brief description of a cement mill Cement clinker is usually ground using a ball mill. This is essentially a large rotating drum containing grinding media -
2015-4-7 · OK™ cement mill. 2 the premier roller mill for finish grinding of portland cement, slag and blended cements. With a 30-45% reduction in the energy requirements for cement grinding and 40-50% for slag as com-pared with traditional ball mill opera-tions, the OK mill can contribute signif-icantly to your profitability and com-
2018-10-9 · Ball Mill is a key equipment to grind all kinds of ores and other materials which is widely used in powder-making production line including cement, feldspar, silie, new-type building material, refractory material, fertilizer, ore dressing of ferrous metal and non-ferrous metal, glass ceramics, etc.
calculation of cement mill charge.pdf. ball mill calculations. Cement Mill Control DB MS. 3 - Ball Mill Grinding. Burner Calculation. Heat Balance Cement Industry Excel Sheet-Er.raza Hussaini. Cooler Efficiency. Ball Mill Optimization. Kiln Cooler Heat Mass Balance Documents Similar To ball mill design. Cement Mill. Uploaded by. saji
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2018-9-19 · Cement Clinker Grinding Plant ZK Corp is the professional manufacturer of cement equipment, can offer complete solution for grinding station, and improves production efficiency, reduces power consumption and environmentally friendly.
Ball Mill,Ball Mills,Cement Ball Mill,Ball Mill Manufacturer-Lipu. Shanghai Lipu Heavy Industry is specialized in research, design and manufacture various type of ball mill, our main grinding mill products are: ball mill, wet type .
2010-11-13 · cement industry the ball mill was really an epoch-making breakthrough as for almost 80 years it was the predominant mill for grinding of raw materials and coal, and still today is the most used mill for cement grinding.
2018-3-6 · Optimization design for grinding roller grinding ring of main-spring pressurization, high-wearing feature. High-performance powder concentrator design-accurate and quick selection of powder. Unique wear proof perching knife design- fission type, convenient for maintenance, wear resistant material, long life.
2018-10-21 · A cement mill (or finish mill in North American usage) is the equipment used to grind the hard, nodular clinker from the cement kiln into the fine grey powder that is cement.Most cement is currently ground in ball mills and also vertical roller mills which are more effective than ball mills.
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mechanical design of ball mill.pdf [ 4.9 - 3321 Ratings ] The Gulin product line, consisting of more than 30 machines, sets the standard for our industry. and the continual introduction and updating of products. Related Posts » turnkey projects cement grinding units india » coal pulveriser plant uk » operation rock crusher vietnam may


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PERSEUS MINING YAOURE S.A
Description du poste
1. Position purpose
The incumbent will lead the geotechnical engineering function at Yaoure mining operations by providing technical expertise, training, systems, and analytical functionality to each operation. It will be incumbent on the employee to set up enduring and sustainable practices through training and mentoring.
He will also lead the development and implementation of safe, sound, systematic and cost-effective geotechnical processes across the operations in Geotechnical Engineering and de-risk the operations from geotechnical failures.
Major tasks and responsibilities of position
• Lead the geotechnical engineering component of mining operations by providing technical support to the mining team, enhancing skills development and succession planning.
• Communicate with all stakeholders to ensure controls are effectively managed and adhered to.
• Develop and control the wall stability monitoring and remediation functions across Yaoure and Sissingué.
• Ensure Budgets and personnel are in place to deliver the agreed strategy
• Lead the identification and implementation of operational improvements in geotechnical engineering
• Lead the geotechnical function at Yaoure and Sissingué to ensure geotechnical outcomes are consistently delivered and technical issues are resolved promptly
• Ensure the geotechnical standards are completed to a technical standard sufficient to comply with JORC and NI43-101 requirements
• Ensure an appropriate staffing and resources are in place at each site to safely deliver mining operations.
• Assist in the development of the Business Growth strategy.
• Ensure that standard processes and systems are in place to deliver satisfactory geological outcomes, including QA/QC and resource estimation as applied to mining operations.
• Periodical site reporting as required.
• All slope failures to be reported and a formal process to be in place for escalation.
• Lead the annual audit review in conjunctions with the Group Technical Services Teams
• Ensure training and development of geotechnical personnel is carried out.
Profil du poste
2. Position Requirements:
• Postgrad in rock mechanics or geotechnical engineering.
• Minimum of five years Mine Geotechnical experience
• Bachelor) degree or equivalent diploma qualification in in Geology, Geotech or Mining Engineering.
• Good understanding of Geological activities associated with all mining and exploration activities.
• Work in adverse climatic conditions such as heat, rain, mud, dust often encountered in the pit. Attention to detail, particularly recording data with minimal errors.
• Fluent French & English
• Relevant geotechnical experience in the open pit mining industry.
• Expertise in the systematic completion of technical studies.
• Experience in managing teams of people.
• Experience with setting up geotechnical processes and systems to effectively manage geotechnical risk on mines, Experience with radars and slope stability monitoring
• Experience with industry standard analytical software (dips, slide etc.)
• Creation of a Ground Control Management Plan
• Ability to work autonomously
• Ability to work as part of a team
• Demonstrated experience in process, planning, management, and leadership.
• Strong technical and analytical orientation.
• Ability to communicate at all levels of the business (internal and external)
• Inquisitive with a solution-oriented personality.
• Excellent relationship building and leadership skills, including mentoring of team members
• Proficiency in the use of one mining package to high level
• Honest, diligent, and enthusiastic.
• Self-motivator and setting of stretched targets
• Be dynamic
• Be able to work under pressure in a frequent changing environment
• Takes ownership of a task and sees it through to completion
• Continually strive for self-improvement
Dossiers de candidature
All qualified and interested employees should send their CVs to
. The deadline of submission is September 30th, 2021 at 10:00 am.
Please specify in subject “Geotechnical Superintendent”


Meet Our Team
CAM geologists, geostatisticians, environmental and social specialists, and engineers work closely and effectively as a team on specific projects for timely, cost-effective results. This approach allows for flexibility and rapid changes during a project to accommodate changing corporate, economic, and/or site-specific requirements. Through its senior staff, CAM also offers management and organizational consulting covering all facets of the mineral resources industry, from the restructuring of private and government-owned companies to cost and efficiency reviews for specific operations. To provide the best available expertise on every project, CAM may contract with additional senior specialists on an as- needed basis.
The following is a list of select CAM professionals, detailing their education and experience.
Michael J. Read
Education: B.S., SME Registered Member
Experience/Specialties: 35+ years. Extensive experience in open pit mining on projects throughout the world having participated in feasibility studies, reserve audits, due diligence reviews and functioned as project manager and/or principal open pit mine reviewer on many Independent Engineer reviews. Mr. Read has served as a Qualified Person in the preparation of reserves used to satisfy requirements for the Canadian National Instrument 43-101 policy and U.S. Security and Exchange filing requirements.
Matthew P. Reilly
Education: B.S., P.E.
Experience/Specialties: 35+ years. Extensive engineering, operations, construction, budgeting, management, and consulting experience in the copper, gold, and coal mining industries. Mr. Reilly is experienced in all aspects of project financing due diligence reviews, and specializes in evaluations of proposed infrastructure, civil designs, construction plans, logistics, transportation, safety and risk management systems, and operating and capital cost estimates. His recent Independent Engineer assignments include the Copper Mountain, Pueblo Viejo, Cobre Panamá, Sierra Gorda, Ambatovy, and Oyu Tolgoi projects.
Fred R. Banta
Senior Environmental Health and Safety Specialist
Experience/Specialties: 40+ years. Extensive experience in natural resources, environmental and social management, primarily in the mining industry. In the late 1980s and early 1990s Mr. Banta was concurrently the Director of the State of Colorado’s Mined Land Reclamation Division and the Colorado Division of Mines. He also directed environmental programs for Steffen Robertson and Kirsten and Lac Minerals, Ltd, and was the Director of Environmental Affairs for Amax Gold, Inc. Since 1998 he has provided independent environmental and social services to several clients in the mining industry. His experience includes projects in Europe, Africa, South and Central America, the Dominican Republic, Russia, Canada, and the United States. Mr. Banta also has provided audit review and technical support to the International Cyanide Management Institute.
Education: B.S., Ph.D., CPG
Experience/Specialties: 35+ years. Extensive experience in exploration and mineral evaluation on all continents, with emphasis on the Americas. Dr. Bow has conducted over 100 evaluations of major mineral projects. These have included involvement in technical diligence for project financing and acquisitions, reserve audits, and general project reviews to develop efficient exploration programs. His expertise and special interest include copper, gold, silver-lead-zinc, and magmatic nickel-copper-PGE deposits. He has participated in the geological analysis of advanced projects seeking bank and/or ECA financing, including porphyry-copper (gold) projects as well as other metals. Dr. Bow also serves as a Qualified Person geologist in preparation of numerous resource and reserve reports used to satisfy requirements for the Canadian National Instrument 43-101 policy and U.S. Security and Exchange filing requirements. Fluent in Spanish.
Kenneth L. Meyer
Senior Facility Design, Construction and Infrastructure Engineer
Experience/Specialties: 40+ years. Domestic and international experience in the design, construction, and operation of industrial production facilities and associated infrastructure. Mr. Meyer is experienced in design, application, and operation of mechanical and electrical equipment; piping design; process control engineering; and civil/structural engineering. He has been the principal facilities engineering, construction and infrastructure reviewer for Ambatovy, Tenke-Fungurume, Kouilou, Cerro Corona, Cerro Verde, Anatolia, Ahafo, Veladero, Batu Hijau, Antamina, Los Pelambres, San Cristobal, Bulyanhulu, and principal designer for feasibility studies on Golden Queen, Rosia Montana, Wassa Satellite Goldfields, and Esquel in Argentina. Mr. Meyer has extensive foreign experience in Europe, Middle East, Persian Gulf, Asia, and South America. Fluent in Italian.
Steve L. Milne
Senior Underground Mine Engineer
Experience/Specialties: 40+ years. Diversified experience in the management, design, evaluation, and operation of mining properties worldwide. Mr. Milne specializes in the design and evaluation of underground mines and facilities. He has experience with all underground mining methods including: block caving; sublevel caving; panel caving; blast hole stoping; shrinkage stoping; mechanized/conventional cut and fill; and room and pillar. Fluent in Spanish.
R. Stanley Rickard
Senior Metallurgical Engineer
Experience/Specialties: 40+ years. Experienced in metallurgical process research, development, engineering and operations. Dr. Rickard’s expertise is in the management, the development and implementation of metallurgical process including physical beneficiation and hydrometallurgy. Has a strong technical background as well as practical experience in plant construction and operations.
James R. Swaisgood
Senior Geotechnical Engineer
Experience/Specialties: 45+ years. A wide range of geological and civil engineering experience, particularly in projects involving water storage and tailings dams, underground openings, ground behavior, slope stability and seismic analyses. Mr. Swaisgood’s has extensive experience in design, construction, and evaluation of tailings impoundments, dams and reservoirs on projects throughout the world.
CAM has partnered with experienced independent specialists and some that are associated with other consulting and engineering firms. Specialists and firms that CAM has worked with on multiple projects include:
- Mr. David Atkins, Independent Geohydrologist and Social Specialist, Watershed Environmental LLC
- Dr. Fred Barnard, Geology, Independent Consultant
- Mr. Matt Bender, Metallurgy and Processing, Samuel Engineering
- Mr. Tracy Braun, President – Metallurgy and Processing, Braun Technical Services LLC
- Mr. Alan Dabbs and Mr. Walter Arensberg, Social Management Systems and Community Engagement Specialists, Social Capital Group
- Mr. Donald Earnest, Resources, Resource Evaluation Inc.
- Mr. Jay Jones, Independent Air Quality Specialist, Four Peaks Environmental & Engineering, LLC
- Dr. Vanessa Mass, Biodiversity and Environmental Management Systems Specialist, VMC Environment, Inc.
- Dr. Carron Meaney, Biodiversity Specialist, Meaney Consulting LLC
- Dr. Mike Meyer, Environmental Specialist, Meyer EMS, Inc.
- Mr. Edward Wellman, Principal Consultant (Rock Mechanics), SRK North America


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18-06-2012 07:30 Price: 50 000 USD $Offering: Industrial Machinery in Australia, Canberra ... View detailed ...
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Heavy Duty Jaw Crushers
14-06-2012 16:46Offering: Industrial Machinery in Australia, Canberra ... View detailed ...
Lippmann Jaw Crushers are ideal for stationary, skid-mounted, or portable and mobile primary crushing applications. Compare the increased production, reliability, reduced operating costs and flexibility of a Lippmann Jaw. Its large feed opening, and force-feeding action from the inward and downward eccentric movement of the swing jaw, means increased capacity.
OFFER laser engraving machine 1290
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offer laser engraving machine 1290, working area 1200 * 900, 80W laser, a new and guarantee delivery. there is still a model S40 (400 * 400mm), 4060 (400 * 600mm), 6090 (600 * 900mm).
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Moving water is critical in mining
As pressures build on the mining industry, mine operators are looking at their equipment and focusing on maximizing efficiency and productivity to maintain, or even improve their bottom line. Whether you are mining metals, coal, oil-shale, limestone or precious gems, the focus of operations has shifted to higher-production at lower operating costs. Water continues to remain a critical issue in mining operations. Xylem is the right partner for your mining or quarrying dewatering needs.
Xylem offers a complete program for mining or quarrying water solutions. You can leverage our team to design, install and maintain your dewatering equipment, whether your operation is open-pit or underground. With Xylem, you:
Have the right pump for the job. With a broad portfolio of electric and diesel pumps, no one offers a wider selection than Xylem. For your convenience, we offer rental and purchase options.
Have a reliable system that works. Because we design and build our own equipment, we understand how it works best and engineer dewatering systems to meet the needs your mining operation.
Have a support team committed to your safety and success. The experienced Xylem team provides turnkey services, including site drainage design, installation and equipment servicing. We are there every step of the mining process.
For all your mining water transfer and removal needs, Xylem has a team and pumps ready for you. As a proven leader in the dewatering industry, we make a great team.


عنوان مقاله [English]
Nickel-based catalysts are used in most refinery processes. After being regenerated and reused several times, these catalysts are released as used catalysts in nature, which, in addition to environmental risks, are not economically viable due to the presence of the precious metal nickel. Hydro-metallurgical methods are commonly used to extract nickel, which is difficult and expensive. Due to the significant shortage of nickel mines, the use of these secondary resources is quite important. In this study, the possibility of nickel recovery from used catalysts has been investigated. Initially, the cokes were removed, and then the effects of three different acids on nickel leaching were investigated. Sulfuric acid, nitric acid, hydrochloric acid are three main acids which used in this work. Various parameters such as temperature, mixing speed, liquid to solid ratio, particle size and acid concentration were investigated. After the complete leaching of nickel, nickel purification was performed by selective nickel hydroxide precipitation.


Купить Caluanie Muelear Oxidize онлайн
We have in stock good quality Caluanie at an affordable price.
This product is used for crushing and processing precious metals and semiprecious stones. It is used for processing precious and semiprecious stones, crushing metals in the chemical industry.
This makes it easier to break nails with bare hands after a 10-20 second dive. Heavy water changes the properties of the metal, making it brittle. But at the moment of evaporation of heavy water, the rock returns to its previous state.
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|ENERGY & MINING
|COAL & MINING :
|Applying for a Mining License in Indonesia
Foreign companies seeking to establish a non-oil and gas mining operation in Indonesia are required to obtain a mining license. This section briefly explains what is needed in applying for one.
|Indonesia's Coal Industry: Full Steam Ahead
Indonesia's coal industry is expected to continue in an upward trend throughout the course of 2017. Caution beyond that point should however be taken as various factors contributing to coal's price recovery can be limited to the short term only.
|Indonesia's Coal Mining Sector: A Silver Lining Behind Dark Clouds
After being highly sought-after and becoming a leading foreign exchange earner through the early 2000s, Indonesia's coal sector has been hit hard in recent years following the fall in commodity prices.
|Indonesia's Metal Mining Sector: Rewriting the Rules
On 11th January 2017, the Indonesian government issued abrupt and unexpected changes to its Mining Law that sent reverberations around the for metal miners. The new regulations ultimately shed light on the ongoing inconsistencies facing investors looking to enter or develop the sector.
|Indonesia's Smelting Plans - Moving Slowly, but Moving
The economic slowdown and uncertain global environment have obstructed Indonesia's policy to push the country's mining sector to invest in metal smelters and downstream industries. Falling exports and the depreciation of the rupiah raise questions over the timing of the government's move to ban shipments of unprocessed metal minerals.
|Metal Mining in Indonesia: Time to Face the Facts
Building Indonesia's metal industries requires immense capital, much of which will come from abroad. The ore export ban, therefore, should be seen by foreign investors as an opportunity rather than a threat. For mining companies willing to play by the new rules, it's far from game over.


Eric Sprott has made over 50 investments into junior mining companies in 2021. Here are the top 5 stocks Eric Sprott is buying in 2021:
1) Labrador Gold (TSX.V: LAB)
Eric Sprott acquired 11 million shares of Labrador Gold for cash consideration of $9.99 million, giving him a 12.4% ownership stake in the company. Labrador Gold is a Canadian based mineral exploration company exploring for tier-one gold discoveries in Newfoundland. The company has recently acquired a 100% interest in the highly prospective Kingsway gold project in Newfoundland, located along trend of New Found Gold’s Keats and Lotto zone discoveries. The company currently has 4 drill rigs operating as part of a 50,000 metre drill program.
2) Benchmark Metals (TSX.V: BNCH)
Eric Sprott exercised 6.66 million share purchase warrants of Benchmark Metals, keeping him as the company’s largest single shareholder controlling 14.8% of outstanding shares. Benchmark Metals is a Canadian based gold and silver company advancing its 100% owned Lawyer’s Gold-Silver Project located in the prolific Golden Horseshoe of northern British Columbia, Canada. The Project consists of three mineralized deposits that remain open for expansion, in addition to +20 new target areas along the 20-kilometre trend.
3) New Age Metals (TSX.V: NAM)
Eric Sprott acquired an additional 12.98 million shares of New Age Metals, increasing his stake in the company to 24.51% of all outstanding shares. Mr. Sprott can further increase his stake in New Age Metals to 34.7% if he exercises the associated share purchase warrants attached to private placement. New Age Metals is a junior mineral exploration and development company focused on the discovery, exploration and development of green metal projects in North America. The Company has two divisions; a Platinum Group Metals division and a Lithium/Rare Element division.
4) Ethos Gold (TSX.V: ECC)
Eric Sprot made a strategic $2 million investment into Ethos Gold through the purchase of 6.25 million units consisting of one common share of the company along with one share purchase warrant exercisable at $0.45 per warrant. Ethos Gold, a Discovery Group company, has accumulated a portfolio of district-scale projects in British Columbia, Ontario, Quebec, and Newfoundland that have large scale discovery potential. The Company has a solid technical team led by Dr. Rob Carpenter, formerly the CEO of Kaminak Gold Corporation, who led the Kaminak team from initial listing in 2005 through acquisition and discovery of the multiple-million-ounce Coffee Gold Project.
5) E79 Resources (TSX.V: ESNR)
Eric Sprott was the lead order in an $8 million private placement completed by E79 Resources. Mr. Sprott acquired five million shares at a price of $1 per share. E79 Resources is focused on exploring for Fosterville-type mineralization at its properties in the Victorian Goldfields, Australia. The Myrtleford property represents the consolidation of an entire historic gold camp with over 70 past producing gold mines on the property, where the bulk of historic mining stopped at the water table. At Beaufort, an opportunity exists to explore for a hard rock source of a major alluvial goldfield along a structure that is known to host gold in the region.
Junior Mining Network (“JMN”) is not a financial advisory or advisor, investment advisor or broker-dealer and does not undertake any activities that would require such registration. The information contained herein is not intended to be used as the basis for investment decisions and should not be considered as investment advice or a recommendation, nor is the information an offer or solicitation to buy, hold or sell any security. JMN does not represent or warrant that the information posted is accurate, unbiased or complete and make no representations as to the completeness or timeless of the material provided. JMN receives fees for producing content on financial news and has been compensated to publish this content. Investors should consult with an investment advisor, tax and legal consultant before making any investment decisions. All materials are subject to change without notice.


After a federal Court of Appeals rejected an industry-led challenge last month, a new federal rule to reduce coal miners’ exposure to dangerous dust goes into effect Monday.
In 2009, the Mine Safety and Health Administration began a campaign to end black lung disease, which is caused by breathing in large amounts of coal dust. The disease was in decline for decades but has experienced a recent resurgence.
“This disease is far from over,” MSHA Secretary Joe Main said. “Miners have suffered, families have suffered from this disease, and the time has come to fix this problem. And implementation of this rule will help us get there.”
Part of MSHA’s campaign includes federal rules to keep better track of the coal dust to which miners are exposed. Companies now have to take more dust samples, as well as sample for an entire shift. Over the next few months, coal miners working in the jobs with the most dust will have to wear small continuous personal dust monitors.
Main said the monitors will provide miners with real-time information about the dust they’re breathing.
“You can move a few feet one way or the other at times and get out of an airstream that carries a higher concentration of dust,” he said. “And those who use this tool will be able to see that and understand more in real time about where the best positions even are to stand up on a mining section or up on a longwall. That in itself is going to help miners get out of the dust.”
The monitors will record the information, and companies will be required to submit the data to MSHA to verify that dust levels are being controlled in their mines.
The National Mining Association and coal company Murray Energy challenged the new rules in the 11th Circuit Court of Appeals. Lawyers for NMA and Murray argued the federal government didn’t have the authority to issue the rule, and also challenged the rule’s substance.
But a three-judge panel disagreed, rejecting the industry challenge. In a statement, NMA spokesman Luke Popovich called the decision “disappointing.”
“As we have said, this rule was a solution in search of a problem and the court, rather than addressing this, choose [sic] to accept MSHA’s definition of the problem,” he said.
Main said his agency believes coal operators can follow the new rules. He said despite the coal industry’s implosion in some areas of the country — including Appalachia — coal mining companies are still responsible for keeping miners safe.
“We all recognize the economics of the mining industry, where it’s at,” he said. “But with that, there has to be assurances that health and safety protections are in place for these miners all the time.”


Thursday, March 24, 2016
HD Mining sends temporary Chinese workers home
The B.C. mining company that ignited a firestorm in 2012 over its plans to hire Chinese workers through the temporary foreign program has sent its first batch of workers home. The mine has been idled as it enters the next stage of permitting. HD Mining’s 51 workers, who came to work at the Murray River coal project near Tumbler Ridge in B.C.’s northeast, are headed back to China. “They’ve all returned,” says Blair Lekstrom, senior advisor to the chairman of HD Mining Penggui Yan and himself a former B.C. cabinet minister. “They were approved to work on the bulk sample only."
Despite a bleak market for metallurgical coal, the project is still still moving ahead. “We’ve completed our bulk sample where you take the coal and send it for testing, and we’re entering the mines act permitting process in May, which can take six months to a year,” says Lekstrom. The $688-million project, which will seek approval from the Canadian Envrionmental Assessment Agency in the spring, received a green light from the B.C. Environmental Assessment Office last October.
A public firestorm over the project erupted in late 2012 when the company noted in its application to the federal government to hire temporary foreign workers that the mine would be a “predominantly Mandarin” workplace. The company argued that HD wanted workers trained in an underground mining technique called longwall mining, popular in China and unused to date in B.C. The plan was, and still is, says Lekstrom, for the Chinese workers to teach their future Canadian counterparts as the project got up and running.
Two unions subsequently took HD Mining to court, and when a federal court ruled in favour of the company, it cleared the way for the company to hire temporary foreign workers for its Northern B.C. mine. According to Lekstrom, the company’s plans are unchanged: "We'll follow every rule there is," he says, "if we have qualified Canadians who want to work for us, that’s our first priority.” To that end, HD Mining has signed a memorandum of understanding with Northern Lights College to offer training in the technique to future workers, which all in all has made the decision to hire temporary foreign workers a costly one, but necessary for the utilization of longwall mining. Says Lekstrom, "There’s a myth that temporary foreign workers cost less when it's just the opposite."


Calling for an investment in the mining sector, Chief Minister Pramod Sawant on Monday announced that the iron ore mining related activities will commence from October, this year.
Sawant, however, maintained that it will take seven to eight years for the full-fledged operation of the iron ore activities.
Speaking to media persons in Sanquelim, Sawant said that with e-auction of mining leases and dump auction policy in place, one can expect the mining activities to commence from October, this year onwards.
“This is the right time to invest in the mining business. Those who are ready to invest should invest now. In the coming seven to eight years, the industry will run full-fledged,” he said.
The Chief Minister said that the government focus is to allow and promote only sustainable mining practices by maintaining balance with the environment.
The iron ore mining activities in the State are shut since March 2018 after the Supreme Court set aside the second renewals granted to 88 leases.
The State government has so far e-auctioned nine mining blocks; however all the blocks require statutory clearances including Environment Clearance to commence the operation.
Simultaneously, the government has continued with e-auction of ore, lying at various locations. Next month, around 1.17 million tons of ore is identified for e-auction.


The following publications are available for download under the following links:
Hancox, P.J. and Pinheiro, H.J. 2017. The new SANS 10320:2016 versus the 2014 Australian guidelines for the estimation and classification of coal resources – what are the implications for southern African coal resource estimations? The Journal of the Southern African Institute of Mining and Metallurgy, vol. 117. p. 1113-1119.


Beginning the week of Feb. 4, the U.S. Department of Energy (DOE) Moab Uranium Mill Tailings Remedial Action (UMTRA) Project increased mill tailing shipments from the UMTRA Site in Moab to a permanent disposal site in Crescent Junction. The project’s goal is to double weekly train shipments from two to four, shipping Monday through Thursday, enabling accelerated cleanup.
Project contractors hired 23 new employees to support the increase in production.
“The increased shipments are part of DOE’s mission, under the Office of Environmental
Management, to safely clean up contaminated facilities leftover from the nation’s Cold War
environmental legacy,” federal cleanup director Russell McCallister said. “Increasing
shipments is part of the project’s goal to safely remove tailings as quickly as possible.”
Each train can transport up to 144 containers and can carry approximately 4,700 tons of mill
tailings. Mill tailings are a sand-like material that remain from processing uranium ore. The
tailings are transported by rail in sealed metal containers, away from the Colorado River and the
Moab site, to the Crescent Junction site, located about 30 miles north.
The tailings are placed in a
DOE-constructed, U.S. Nuclear Regulatory Commission-approved disposal cell. The Moab UMTRA Project began shipping activities in 2009 and is more than half way to completing its
mission of relocating 16 million tons of tailings.
23 new employees hired for energy remedial project


Cajamarca could be the leading region in the future development of the mining cluster in the northern macro-region of Peru; however, it will have to overcome interconnected infrastructure challenges and linkages with other economic sectors, as highlighted by Eng. Miguel Cardozo, Vice President of the Peruvian Institute of Mining Engineers.
He commented that the awakening of the Conga, Galeno and Michiquillay mining projects in Cajamarca will speed up the possibility of a mining cluster in northern Peru, which will make it possible for these three operations to share productive infrastructure, building a common mineral pipeline for the transportation of concentrates and implementing a first-class highway or a train to carry the minerals to the ports of Salaverry or Bayóvar.
“An average distance of 7 kilometers separates one mining project from the other; that is, the three mining deposits lie along a 14-kilometer strip. Furthermore, they have similarities in their production and export parameters and may create potential synergies, such as a common site for the storage of mining tailings in safer conditions”, he added.
In his opinion, the infrastructure resulting from the mining cluster could be the driving force for agricultural growth through large irrigation projects that could enable the use of farming lands mostly in Cajamarca, Lambayeque, La Libertad, Pura and Tumbes and this could even be further optimized with the startup of construction in La Granja and Cañariaco.
“Not only shared mining infrastructure is created among operations, but also infrastructure to boost other economic sectors and drive them towards prosperity, offering all the possibilities to providers from the areas of influence and outside these areas to transport goods and services to the mining projects”, commented Eng. Miguel Cardozo.
Rumbo a PERUMIN Cajamarca
As part of its activities, the Peruvian Institute of Mining Engineers of Peru and the Organizing Committee of PERUMIN 35 will hold a decentralized Rumbo a PERUMIN, which this time will focus on the mining region of Cajamarca and will take place during the 16th and 17th of February.
Under the slogan “Consensus for the progress of Cajamarca”, this new edition will be a space for analysis and debate to address the present of mining in Cajamarca, the opportunities of the sector for the communities and the challenges for the socio-economic development of the region.
The event will work out a program of technical and commercial conferences, which will also be transmitted through its official channels in Facebook (https://www.facebook.com/PeruminOficial) and YouTube (https://www.youtube.com/c/Perumin) so that they are available to the general public.


Flotation machine, is the completion of the flotation process of mechanical equipment.In a flotation machine, the slurry, which has been treated with an agent, is mixed and inflated so that some ore particles are selectively fixed to bubbles;Floating on the surface of the pulp, it is scraped off to form a foam product, and the rest remains in the pulp for the purpose of mineral separation.
Applications: The machine can be used to separate nonferrous metal, ferrous metal, noble metal, nonmetallic mine, chemical material and recycle mine.
when the impeller is rotating, the flotation tank is driven by the motor triangle alternative transmission device. On the one hand, enough air is mixed with the mud; on the other hand, the mud mixed with drugs is stirred while mixing with the mud to make the adhesive above the mineral foam.Adjusting the height of the gate and controlling the liquid level is a useful method to remove the foam scraper.
1.The slurry bearing box of the flotation machine is composed of a box welded with steel plates and a gate welded with steel rods.
2.The flotation machine or the mixing device of the flotation machine is composed of a pulley, a impeller and a vertical shaft for mixing slurry to prevent the mineral sand from settling in the tank.
3.The aerator consists of a number of intake pipes which blow air towards the mineral and cause it to form bubble clusters.
4.The bubble forming device of the flotation tank and flotation separator mainly squeezes the foam on the tank surface. The reducer of the device is driven by the motor to drive the scraper work of the copper mine flotation machine.


Rio Tinto proposes to privatize Turquoise Hill Resources
MONTREAL – Rio Tinto International Holdings Ltd. made an offer on Monday to buy the 49 percent stake in Turquoise Hill Resources Ltd. that it does not already own and to privatize it.
The proposal values the minority stake in the company at around $3.4 billion.
Under the offer, Rio Tinto, which already owns a 51% stake in the company, would pay $34 per share for the approximately 99 million shares held by minority shareholders of Turquoise Hill.
Shares of the company closed at $25.68 on the Toronto Stock Exchange on Friday.
Turquoise Hill owns a 66% interest in the Oyu Tolgoi copper and gold mine in Mongolia. Erdenes Oyu Tolgoi LLC, a Mongolian public entity, holds the remaining 34% stake.
Rio Tinto said the deal would simplify the ownership structure of the mine and strengthen its copper portfolio.
“Rio Tinto strongly believes in the long-term success of Oyu Tolgoi and Mongolia, and in the long-term success of all stakeholders,” Rio Tinto chief executive Jakob Stausholm said in a statement.
“The proposed transaction would allow Rio Tinto to work directly with the Government of Mongolia to advance the Oyu Tolgoi project with a simpler and more efficient ownership and governance structure.”
Turquoise Hill said its board of directors would establish a special committee of independent directors to review and review the proposal.
“Turquoise Hill shareholders do not need to take any action regarding the proposal at this time,” the company said in a statement.
The offer follows an agreement between the company, Turquoise Hill and the Mongolian government in January to advance the Oyu Tolgoi project, restore the relationship between the partners and approve the start of underground operations.
In its outlook for this year, Turquoise Hill said it expects Oyu Tolgoi to produce 110,000 to 150,000 tonnes of copper and 115,000 to 165,000 ounces of gold in concentrates in 2022 from processing surface and underground development materials as well as stockpiles.
He said gold and copper production is expected to be lower in 2022 compared to 2021 due to the removal of the next cut and the processing of lower grade stockpile materials.
This report from The Canadian Press was first published on March 14, 2022.
Companies in this story: (TSX: TRQ)
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Fund Advisor - Mining
Chris joined Barak in a consulting role in early 2016 where he was responsible for reviewing the technical aspects of deals related to the mining and metals industry. He subsequently joined Barak full-time in June 2017 and has broadened his role to include origination. Prior to joining Barak, Chris worked at Goldfields Ltd West Rand operations where he completed a number of continuous improvement projects and subsequently joined Glencore’s Katanga Mining operations in DRC as a mining engineer.
Chris has a B.Eng Honours (Mining) from the University of Pretoria and is currently completing his CFA.


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Kaolin is removed from underground seams in the mining area to a processing area, where it is sliced, dried, and pulverised to make the finished product. A study was undertaken to determine the dust concentrations in various work areas and to assess the prevalence of radiographic and pulmonary function abnormalities in 65 workers at a Georgia kaolin mine. Respirable dust concentrations were higher in the processing area than in the mine or maintenance areas for all determinations from 1977 to 1981. The mean respirable dust level in the processing area in 1981 was 1.74 mg/m3 and 0.14 mg/m3 in the mine area. Five workers, all of whom had worked at the processing area, had radiographic evidence of kaolin pneumoconiosis. The mean values of forced vital capacity (FVC) and FEV1 of the entire group were within the normal range. When the spirometric values were expressed as a percentage of the predicted values, the FVC and FEV1 were significantly lower in the workers with kaolinosis than in other workers in the processing area. The FVC and FEV1 also declined significantly with increasing years of work in the processing area. The FEV1/FVC%, however, was not significantly altered either by the presence of kaolinosis or by an increasing number of years of work, indicating that the impairment was restrictive and hence likely to be a consequence of dust inhalation rather than smoking. In this study the highest dust concentrations occurred in the processing area, and kaolin pneumoconiosis was limited to those who had worked there. Kaolin exposure appeared to have a small but significant effect on ventilatory capacity in those with kaolin pneumoconiosis and in workers with a longer exposure. There was no association between the radiographic appearances of kaolinosis and cigarette smoking or between the presence of radiographic abnormalities and reduced arterial blood gas tensions.
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Previous exploration activities included 1,458 m of adits, 3,387 m3 of trenching, and 11,759 m of diamond drilling in 52 diamond drill holes between 2006 and 2013, focused on the 1 km by 1 km northwest corner of the project area. Exploration has defined six silver-lead-zinc vein structures and one gold-silver vein structure. The most explored vein structures are K3 and K4. K3 dips 25 - 55° to the north-northwest, and extends 600 m along strike and 400 m down-dip from surface, while K4 dips 35 - 65° to the northwest, and extends 960 m along strike and 540 m down-dip from surface. K3, K4 and a majority of other veins are still open along strike and at depth.
Based on the drill grid spacing of 68 m to 170 m along strike, and 45 m to 230 m down dip, mineral resources for silver, lead, zinc, and gold were estimated in 2013 by the Geological Brigade No. 1 of Henan Province Non-ferrous Metals Geological and Mineral Resources Bureau using Chinese standards (not NI 43-101 compliant), and were posted on the auction website. The mineral rights fee related to the estimated mineral resources, with a calculated value of US$5.4 million (RMB¥34.8 million) based on current regulations, has been previously paid in full.
Highlights of selected drill hole intercepts:
- Hole ZK40305 intercepted a 4.15 m interval from 179.49 m, grading 536 grams per tonne (“g/t”) silver (“Ag”), 2.47 g/t gold (“Au”), 2.05% lead (“Pb”), and 8.00% zinc (“Zn”)
- Hole ZK30703 intercepted a 0.23 m interval from 131.45 m, grading 1,462 g/t Ag, 0.69 g/t Au, 0.84% Pb, and 1.41% Zn
- Hole ZK41501 intercepted a 0.36 m interval from 100.63 m, grading 1,561 g/t Ag, 5.98 g/t Au, 9.09% Pb, and 14.14% Zn
- Hole ZK41105 intercepted a 0.48 m interval from 215.77 m, grading 848 g/t Ag, 10.00 g/t Au, 9.82% Pb, and 7.92% Zn
- Hole ZK40311 intercepted a 0.43 m interval from 348.33 m, grading 92 g/t Ag, 8.78 g/t Au, 9.25% Pb, and 4.5% Zn


Wilgee Springs Project
Castle Minerals Limited has applied for an exploration licence, Wilgee Springs (ELA 70/5880), encompassing 120km² along strike from and within the same metamorphic belt as the World-Class Greenbushes lithium mine, 25km to the south in Western Australia’s South-Western region.
The Greenbushes pegmatite deposit underpins the World’s largest, highest grade and lowest cost, hard rock, spodumene concentrate producing operation, supplying 21% of global lithium from a mineral resource of 178.5Mt at 2.0% Li₂O. The mine is owned by Albermarle Corporation / Tianqi Lithium / IGO joint venture. The pegmatites that host the spodumene mineralisation at Greenbushes are part of a late-stage intrusive sequence that was emplaced into the north-south trending Donnybrook-Bridgetown Shear Zone, a regional-scale lineament that can be traced for some 150km in the Archean Balingup Metamorphic Belt. This belt extends north of Greenbushes into the western portion of Castle’s application area.
In addition to the joint owners of the Greenbushes mine, Castle now joins Lithium Australia P/L, CMC Lithium P/L and Lithium Power Holdings P/L in the immediate area.
Extensive lateritic cover has obscured the geology and seriously hampered previous exploration. No records of exploration in the licence application area specifically for lithium or associated tin and tantalum have been located within the WAMEX open-file reports archive.
With the availability of today’s advanced geochemical and geophysical technology, this now presents an exciting opportunity for Castle to in effect “peer” below the cover and explore for lithium-bearing pegmatites.
The application area is situated over the Balingup Metamorphic Belt (BMB), which forms part of the Yilgarn Craton’s South West Terrain Greenstone. The BMB extends roughly north-south for over 200km and ranges in width from 50km in the south to 3km in the north. The rocks comprise highly deformed gneiss and granofels with minor quartzite, schist, BIF and ultramafic rocks. The BMB, which has been intruded by the Gibraltar Quartz Monzonite in the central part of the license area, is thought to be derived from partial melting of amphibolite bearing gneiss. Yilgarn Craton granites are located along the eastern margin of the application area.


Europe and the US want to promote independent production of rare earths
International Business News – Europe and the United States are accelerating their own production of rare earths, which are indispensable for pure electric vehicles (EVs) and wind turbines, and Sweden has discovered the largest deposit in Europe in case there are unforeseen events that prevent it from being sourced from China, the largest supplier. From the point of view of economic security and safety, it seeks to get rid of dependence on China.
“It’s good news not only for us and Sweden, but for Europe and climate (change policy). You can’t make pure electric cars without rare earth deposits,” said Jan Mostrom, chief executive officer (CEO) of the country’s mining giant LKAB, which discovered rare earth deposits in Kiruna, northern Sweden, revealing plans to apply for the mining permits needed to start investigations during 2023.
LKAB plans to mine rare earths as a by-product of phosphoric acid in the future, but as of now, it is still unknown what rare earths can be mined, etc. The new deposit has found reserves of more than 1 million tons of rare earth oxides.
Jan Moström said that the actual mining and supply of rare earths “generally takes at least 10 to 15 years”. The European Commission, the executive body of the European Union (EU), is discussing adjustments to the approval process for purely electric vehicle material mining projects in the region, and is expected to propose a bill in March. If passed, the time until supply could be reduced to less than half.
The background of the EU’s intensified intra-regional production is the concern of dependence on China. The EU region lacks rare earth mining sites and is 98% dependent on imports from China. On the other hand, the demand for materials for purely electric vehicles is bound to expand further as the EU proposes a complete ban on new sales of gasoline and diesel vehicles by 2035.
European Commission President Von der Leyen said that rare earths, which are indispensable for magnets for pure electric vehicle motors, and lithium, which is one of the main materials for on-board batteries and a rare metal, will be more important than oil and gas.
The European Commission’s Joint Research Centre (JRC) predicts that demand for lithium will increase to 18 times current consumption by 2030 and 60 times by 2050. In the EU, almost all lithium is imported from outside the region, such as Chile and Russia.
French mining major Imerys announced in October 2022 that it would launch lithium mining at Beauvoir in central France. The plan is to mine 34,000 tons per year starting in 2028, which could satisfy about 700,000 pure electric vehicles. The deposit was previously put on hold due to high costs, but has become profitable due to rising lithium prices and subsidies. The same project will also be advanced in Germany and the Czech Republic.
The Biden administration will aggressively promote the development of strategic materials in order to strengthen the supply chain in the U.S. In 2022, it has decided to provide subsidies to sites fully involved in mining, separation and smelting in the western state of California. In the southern state of Texas, funding has been provided to a separation and smelting site built by Linus, a major Australian rare earth company.
In December 2022, the Japanese government classified rare earths as “specified important materials” under the Economic Security Promotion Act, and will accelerate domestic reserves, on the other hand, there is a trend to build smelters.
Cost and environmental protection are barriers
Countries have identified rare earth and rare metals including lithium as strategic materials and accelerated their independent production.
While rare earth ores can be mined outside China, the environmental load of the smelting and separation processes that remove impurities from the ores and extract the minerals is huge. As a result, it has gradually moved from the United States to China, where labor costs are low and environmental protection policies are relaxed.
The obstacles to restarting production in America and Europe, where environmental policies are strict, are high. In January 2022, the Serbian government cancelled a permit for Anglo-Australian resources giant Rio Tinto to exploit lithium at Jadar in the west of Serbia. It was expected to be the largest lithium mine in Europe with an annual production capacity of 58,000 tons, but the license was canceled due to demands from environmental groups.
Leading Edge Materials, a Canadian company, also planned to develop rare earth deposits in southern Sweden, but the project has been stalled for more than 10 years due to opposition movement over forest destruction and lake water pollution. The rare earth deposit is located in Sweden, which is likely to be opposed by environmental groups.
Japan, the United States and Europe are strengthening cooperation. Strengthening the supply chain is one of the key elements of the Indo-Pacific Economic Framework (IPEF), a new economic sphere initiative led by the United States that will be launched in 2022. How to solve the cost and location problems while cooperating with Allies and regions will be the elements of breaking away from China’s dependence.