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Primary Arizona Environmental Laws That Regulate Mining Operations And WasteBy III Kimball
For many years, Arizona merely shadowed EPA's environ-mental regulation of mining operations and waste. During this period, Arizona generally assisted EPA in the implementation of federal program
Jan 1, 1989
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Efficient Use Of Additives To Improve Pneumatically Emplaced Backfill Strength (PRIPRINT 87-32)By M. J. Carlson
With the goal of improving the strength characteristics of pneumatically emplaced material used for localized subsidence control, the binding additives: fly ash, bentonite, and Portland Cement, were e
Jan 1, 1987
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Water Clarification, Coal Recovery And Pelletizing - Pelletizing And Recovery Of Coal Fines ? IntroductionBy Howard N. Egan
The importance of coal as the major energy source has led to wider interest in the recovery of waste coal fines as a usable product. An additional incentive for fine coal recovery has been the increas
Jan 1, 1967
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Industrial Minerals And The Environment: A North American PerspectiveBy R. D. Irvine
Enhanced concern for protection of the environment and attendant actions by environmental regulatory authorities in support of this concern are influencing to varying degrees the demand and supply of
Jan 1, 1995
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Paste Thickening Tailings ? Recent Examples Of A Rapidly Emerging TechnologyBy T. Gollaher
The use of paste thickeners for mineral tailings has gained increasing acceptance by the mining industry throughout the world and in the U.S. during the last five years. Advantages of water recovery
Jan 1, 2010
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A General Transformation Function For The Prediction Of Volumetric Abundance From Linear Grade DistributionsBy K. Baba
Liberation of valuable minerals from a gangue matrix during size reduction of multiphase mineral particles is an important objective in mineral separation processes. A methodology for the prediction o
Jan 1, 1985
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Risk Management for Soft Ground Tunnels in New YorkBy Andy Thompson, Frank Perrone
"As part of the Metropolitan Transportation Authority’s $10.5bn East Side Access Project in New York, 3,200 m of tunnel had to be constructed in rock, mix face and soft ground conditions beneath one o
Jan 1, 2016
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New Concept Of Long-Range Open Pit Planning ? I. IntroductionBy John Duff Erickson
Determination of the final pit limits of an open pit copper mine is a problem that has far reaching effects on the life, profitability and operation of a mine. The solution to this problem requires th
Jan 1, 1968
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Continuous Dust Monitoring For Improved Worker ProtectionBy J. H. Daniel
Dust-related respiratory disease remains the major health concern in mining, and health agencies are proposing more stringent standards. The U.S. Bureau of Mines (USBM) is investigating techniques to
Jan 1, 1995
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Problems In New Strip Mine DevelopmentBy Richard W. Brummett
Problems in new strip mine development is a subject that could require several days to cover adequately. Coupled with the fertile imagination of television writers, we could probably expand it into a
Jan 1, 1974
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A New Approach To Standardization Of Belt Conveyor DesignBy Walter P. Hansen
Belt conveyors offer a reliable means and often do the most economical job for providing continuous bulk material transport, whenever the terrain permits their installation. The ore processing, constr
Jan 1, 1979
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Subsea Tunnels Supply Water to the Driest Place on EarthBy Cary Hirner, Dan Lopez, Ross Webb, Stephen O’Connell
"Construction of the largest desalinization plant in the Americas has commenced in northern Chile. It is part of a several billion dollar expansion at a copper mine whose operations nearly stopped due
Jan 1, 2016
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Application Of Subsidence Observations To Development Of Modified Longwall Mining System For Potash - IntroductionBy F. L. Pierson
Since the discovery of 'potash in the Carlsbad area in 1926 and the start of mining operations in 1931, "first mining," operations have been carried on. This is a room and pillar system in which
Jan 1, 1965
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Cyanide Leaching Chemistry Of Platinum Group MetalsBy P. L. Sibrell
Previous research by the U.S. Bureau of Mines showed that autoclave cyanide leaching of used automobile exhaust catalysts for recovery of platinum group metals (PGM) was technically feasible. This wor
Jan 1, 1994
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Use Of An Analytical Solution For Preliminary Estimates Of Ground-Water Inflow To A Pit (9ec87ffa-ca62-4eef-91c3-cc0dba52461b)By T. M. Hanna
The results of using a simple analytical solution and a relatively complex numerical model to estimate ground-water inflow to an open pit mine are compared. The analytical solution assumes lateral, ra
Jan 1, 1992
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Diamonds, IndustrialBy R. B. Hoy, Stanley J. LeFond, Unni H. Rowell, K. Reckling, Derek G. Fullerton
In 1989 natural industrial diamonds counted for 55% of the world's natural diamond production. Australia is currently the leading producer (35%). Zaire is the second largest producer (19%). of wh
Jan 1, 1994
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Integrating Reclamation Into Mine Planning At The Chimney Creek MineBy William A. Faust
At Gold Fields' Chimney Creek Mine, major reviews of the reclamation and closure plans are done concurrently with the annual mine planning required for budget preparation. This review includes id
Jan 1, 1992
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Comminution Of Carbonate Minerals In A High-Pressure Roller MillBy E. Forssberg
Studies have been carried out with the High Pressure Roller Mill, HPRM, to produce calcium carbonate minus 10 micron. This paper presents the optimization of the specific grinding force of the HPRM sy
Jan 1, 1996
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Environmental Liability Management For Mineral ProcessorsBy J. S. Walstrom
Debate on an appropriate, acceptable method of regulating mine and mineral processing wastes has been ongoing since Congress passed the Resource Conservation and Recovery Act (RCRA) on October 21. 197
Jan 1, 1992
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Development Of A Wet Head Drum MinerBy M. K. LeBegue
Water sprays located behind the bits of cutter drums have been shown to reduce the incidence of face ignitions. This paper details the design approach to successfully incorporating water seals into a
Jan 1, 1999