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Calcium Lignosulfonate as a Depressant for Enhancing Flotation Separation of Covellite and Enargite - Mining, Metallurgy & Exploration (2024)By Quanjun Liu, Rongping Lin, Rongdong Deng
Arsenic contamination significantly affects the quality of copper concentrates, presenting challenges during smelting processes. Considering that covellite and enargite have similar surface properties
Feb 28, 2024
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Effectiveness Of Dust Respirators Underground Coal Mines ? I. IntroductionBy Homer E. Harris
As a result of the enactment of the Federal. Coal Mine Health and Safety Act of 1969 1, the Department of Health, Education, and Welfare (HEW) has been carrying out research in the "field of coal mine
Jan 1, 1973
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Discussion - Strategic Minerals Geophysical Research : The Chromite ExampleBy J. C. Wynn
J.R. Hillebrand From the abstract, "A realistic ore deposition model to serve as a conceptual framework." Further, on page 246, "The first area of study was the Josephine peridotite, now identified
Jan 12, 1983
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Column Flotation Of Montana Chromite OreBy J. D. McKay
The Bureau of Mines devised a column flotation technique using either fine or coarse bubbles and compared it with conventional flotation on a Montana chromite ore. On deslimed ore, fine-bubble column
Jan 1, 1985
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Pyrrhotite Flotation and its Selectivity Against Pentlandite in the Beneficiation of Nickeliferous Ores: An Electrochemistry PerspectiveBy H. R. Manouchehri
"Pyrrhotite (Po) is one of the most abundant sulfide minerals in processing industry and must be rejected in most cases. Particularly, Po rejection and its selectivity against pentlandite (Pn) have lo
Jan 1, 2015
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Preventing Coal Waste Impoundment Breakthroughs into Underground Mines: How well are we doing?By J. F. Mack, P. R. Michael, J. M. Shapaka, S. J. Self, M. W. Richmond
"On October 11, 2000, an estimated 306 million gallons of water and coal waste slurry drained from an impoundment in Martin County, eastern Kentucky into an adjacent underground mine. Approximately 23
Jan 1, 2015
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Industrial and Ecology-Economy Estimation of the Russian Coalfields' ReservesBy V. A. Kharchenko, V. M. Yeremeev
INITIAL PRECONDITIONS To solve tile problem of using the potential reserves of the different coal ranks efficiently (the coal reserves being many times superior in quantity to those of natural gas
Jan 1, 1996
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Fine-Coal Cleaning By Oil AgglomerationBy G. Purcell
When coal in an oil/water slurry is ground to minus-200-mesh in a ball mill, some of the mill energy, normally wasted as heat, can be usefully recovered to help emulsify the oil. If the discharge flow
Jan 1, 1980
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The Present Status And Trends Of Kaolin Processing Technology In ChinaBy F. Dingwu
The latest technology and novel equipments in kaolin processing industry in China are described in this paper. Some typical experimental results are presented, which include laboratory-, pilot-or comm
Jan 1, 1995
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Selective Elution Of Gold, Silver And Mercury Cyanide From Activated CarbonBy K. Bunney
A high-pressure laboratory elution rig was commissioned to simulate industrial Zadra and AARL elution conditions for the stripping of gold, silver and mercury from loaded activated carbon. It was fou
Jan 1, 2010
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Production Of Colemanite At American Borate Corporation Plant Near Lathrop Wells, NevadaBy Jr. Smith
Borates have been mined in the desert areas of California and Nevada for more than 100 years. To about 1890, playa surface mining provided the chief sources of boron minerals. Underground mining of co
Jan 1, 1978
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Silver And Gold Recovery At Sunshine Mining Company's New 16-To-1 Mill - IntroductionBy Larry A. Enloe
The 16-to-1 milling operation is Sunshine Mining Company's first new silver and gold producing facility. The 16-to-1 underground mine and mill are located approximately 64 km (40 miles) southwest
Jan 1, 1984
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Cost Of Reclamation And Mine Drainage Abatement - Elkins Demonstration ProjectBy Robert B. Scott
Acid mine drainage, discharging from coal beds, has polluted our streams and rivers since early time. These pollutants affect water quality by lowering the pH, reducing natural alkalinity, increasing
Jan 1, 1970
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Assessment Of Design And Operation Of Grinding Mills Using SimulationBy V. Voller
A relatively simple model of grinding which incorporates both the Bond grindability equations and the population balance equations has been extended to form a comprehensive simulation package that can
Jan 1, 1981
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The Production Potential Of AES-Type MachinesBy R. H. Ring
The Automatic Extraction System (AES) was designed and built under a U.S. Department of Energy Contract by the National Mine Service Company in cooperation with the Lee Engineering Division of Consoli
Jan 1, 1980
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Discharge Permitting And Environmental Assessment Issues Associated With Submarine Tailings Disposal For The Alaska-Juneau Mine ProjectBy P. McGrath
From the mid-1980s through 1997, Echo Bay Alaska evaluated reopening the historic Alaska-Juneau (AJ) gold mine. Their original proposed project underwent numerous modifications in order to minimize th
Jan 1, 1998
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Asset Performance Control In Mineral Processing OperationsBy P. G. Martin
"As the speed of business has continued to increase over the last decade, the focus on real-time control of the performance of both stationary and mobile assets has become an increasing priority. Trad
Jan 1, 2015
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Systems Engineering in Mining: Aligning People, Processes, and Culture for a Successful Change - SME Annual Meeting 2026By Bahadir Ergener, Angel Maria Tobar Escudero, Sandra Nowosad
Modern mining companies are increasingly turning to integrate digital technologies and circular economy (CE) principles to increase the sustainability of their operations. The so-called “mine of the f
Feb 22, 2026
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Impact of Industry Consolidation on Exploration SuccessBy Douglas B. Silver
Study Parameters (Status as of February 1993) Time Period: 1989 -1991 151 North American Public Metal Mining Companies Fiscal not calendar year basis 85+% of Canadian and U.S. Metal Producti
Jan 1, 1993
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Status of the North American Metal Mining IndustryBy Douglas B. Silver
Study Parameters (Status as of February 1993) Time Period: 1989 -1991 151 North American Public Metal Mining Companies Fiscal not calendar year basis 85+% of Canadian and U.S. Metal Producti
Jan 1, 1993