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The Reducibility Of Metallic Oxides As Affected By Heat Treatment. (1e935cf8-3e33-4139-8576-73903723886c)
Discussion of the paper of Woolsey McA. Johnson, presented at the Butte meeting, August, 1913, and printed in Bulletin No. 79, July, 1913, pp. 1137 to 1145. F. L. GRAMMER, Leesburg, Va. (communicatio
Jan 11, 1913
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RI 5478 A Rotating Model Oil Reservoir For Simulating Gas-Cycling Operations ? Summery
By Alton B. Cook
Equipment has been designed and fabricated for study of the vaporization of oil during gas-cycling operations, A sand-packed steel tube, which can be rotated to minimize gravity drainage, is used as a
Jan 1, 1959
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Monitoring Instrumentation For Assessing Ard Development At Mine Sites (7661e381-0f7f-4823-9639-d591c2d5942f)
By D. A. King
Monitoring devices have been installed at several mine sites to assess the potential for the development of acid rock drainage (ARD) in waste rock, spent ore, and tailings material. In addition, instr
Jan 1, 1997
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Mining - Failure in Geologic Material Containing Planes of Weakness
By L. Adler
A relatively simple and effective technique is proposed to deal with the failure of geologic masses containing weakness planes. This technique, termed irextended" rupture envelope, provides a means to
Jan 1, 1963
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Anaconda Nevada Molybdenum Project
By Paul B. Valenti
The Nevada Moly Operation of Anaconda Minerals Co., (a molybdenum/copper ore body) was initiated in 1978, with a contract to Bechtel Civil and Minerals Inc. for construction of a mining and milling fa
Jan 1, 1983
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Surface and Bulk IR Modes of Crystalline and Amorphous Silica: A Study of the Relation of Surface Structure to Cytotoxicity of Respirable Silica
By Raghoottma S. Pandurangi, Mohindar S. Seehra, Pedro Bolsait, Bronwyn L. Razzaboni
"Surface IR (infrared) modes of crystalline and fumed (amorphous) silica particles, calcined at temperatures up to 1095°C, have been studied by Fourier transform infrared spectroscopy. The ability of
Jan 1, 1990
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The Mineral Industry Of Other Areas Of South America - Ecuador (e88c3abe-4b41-4a7c-82c6-b30c9c79aff4)
By Pablo Velasco
Ecuador had limited mineral output, al-though the Government attempted to stimulate metallic mineral exploration and also evaluated a gypsum and a phosphate deposit. A pilot plant to exploit gold depo
Jan 1, 1986
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Carrying Capacity In A Pilot Flotation Column (c455c347-57bd-4dda-bdf0-0cf485eb7e53)
By M. T. Ityokumbul
Concentrate flowrates have been measured for the flotation of -100 mesh Lower Kittaning coal in a computer controlled 0.076 m x 3.5 m pilot flotation column. The variables studied were recovery zone h
Jan 1, 1997
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The Mechanical Aspects of Large Grinding Mills
By C. A. Roloff
Demands for increased grinding production, lower-grade are and limited capital have resulted in ever larger grinding mills, some as large as 36ft (/1 m) in diameter and 12,000 hp (8,950 kw). The resul
Jan 1, 1979
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Publications (f87af13f-1703-48f7-aa79-fc01a21b3385)
Review Mining annual review June 1979. London, Mining Journal, 1979. 624 pp. Available as part of the subscription to the Mining Journal or at £12,50 per copy. This annual review is recognized interna
Jan 1, 1979
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Process Alternatives For Gold Recovery From Cyanide Heap Leach Solutions ? Introduction
By M. B. Mooiman
Cyanidation of gold and silver ores by conventional mining and milling techniques has been practiced for over a century. During the past decade, heap leaching has emerged as a viable process for treat
Jan 1, 1983
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Operation Control of Flash Furnace at Saganoseki Smelter & Refinery
By H. Hirayama, T. Okura, O. Kato
"Saganoseki Smelter & Refinery, one of the largest copper smelters in the world, has the annual capacity of 300,000 metric tons in copper content with two flash furnaces, six Pierce-Smith type convert
Jan 1, 1989
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Institute of Metals Division - Strain Rate Effects in Tungsten
By James H. Bechtold
The yield strength of annealed tungsten was found to have a strain rate exponent 12 times as great as that of low carbon steel. The effects of temperature and strain rate could be correlated through t
Jan 1, 1957
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Explosive Operations for Constructing a Tunnel Based PCB Collection System
By Gerard McAlinden, Daniel Frost, Patrick McAlinden, James McAlinden
In an effort to recover Polychlorinated biphenyls (PCB’s) that had leached into bedrock below the Hudson River in Upstate New York, a shaft and tunnel complex was designed that would allow installatio
Jan 1, 2010
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Application of Yield-Lok Bolt for Bursting and Convergence Grounds in Mines
By Rocky Wu
Rock bursts are one of the greatest challenges to ground control in the mining industry. With increasing mining depth and mining scale, there are more and more industry requirements on yielding rock s
Jan 1, 2011
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Controlling Factors Of Outburst Potential At Sihe Coal Mine, China
By Mingju Liu
The coal and gas outburst accident on May 20, 2007 at Sihe Coal Mine is unique in that there was no or very little soft coal in the coal seam and that the coal strength was very high. The outburst als
Jan 1, 2009
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The South-West Zone Breccia-Centred Copper-Gold Prospect of the Galore Creek Alkalic Porphyry District, North-West British Columbia, Canada
By D Schwab, R M. Tosdal
The Quesnell-Stikine arcs, in the Canadian Cordillera, are host to Triassic and Early Jurassic alkalic porphyry Cu-Au and calc-alkalic porphyry Cu-(Mo-Au) deposits formed outboard of ancestralNorth Am
Jan 1, 2008
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A Novel Process For The Integral Processing Of Residues And Effluents Generated In The Copper Industry
By A. Robles-Vega
Personnel of Mexicana de Cobre, a subsidiary of Southern Copper located in Nacozari, Sonora Mexico have been working in the past few years on the development of a process to treat and manage, in an en
Jan 1, 2007
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1998 RMCMI Mine Rescue Performance Evaluation
The seventh Annual RMCMI Mine Rescue Evaluation was held during the 1998 Institute convention at the Silvertree Hotel, in Snowmass Village, Colorado. The Mine Rescue committee, co-chaired by Becki Bo
Jan 1, 1998