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RI 4126 Recovery of Soda and Removal of Sulfate in the Lime-Soda Process for Alumina Production
By Francis J. Fratttali, Verda McLendon, Stanley J. Green
"INTRODUCTION During the first phases of the war emergency the shortage of aluminum prompoted the Bureau of Mines to investigate methods for using low-grade bauxites of high silica content and also cl
Sep 1, 1947
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Mining Methods at Mount Morgan Limited, Mount Morgan, Queensland
By Patterson B. G
The small party of mining men who formed the original Mount Morgan Syndicate in 1882, commenced operations on the top of the mountain with what were practically nothing more than small hillside quarri
Jan 1, 1939
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Comparison of Penetration Test Results of Grouts Made with Various Ultrafine Cement Products
By James Warner, Peggy Ganse, Glen Smoak, Raymond Henn, Sam Bandimere
Over the past several decades, cement-based grouts using ultrafine cement as are placement for portland cement have begun to gain acceptance as an alternative to chemical solution grouts, however the
Jan 1, 2001
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Cyanide Leaching of Gold-Copper Porphyries: Chemistry and Challenges
By K. J. R. Ford, Botz. M. M.
Porphyry copper ores are frequently a source of low-grade gold ore, but gold in these ores is often associated with significant levels of cyanide-soluble copper. Cyanide leaching of such ores increase
Jan 1, 2011
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Bibliography Of Bureau Of Mines Health And Safety Publications January 1947-June 1955 ? Introduction
By H. B. Humphrey
WHEN THE BUREAU OF MINES was created in 1910, the organic act had as one of its main provisions the following: That it shall be the province of said bureau and its director, under the direction of
Jan 1, 1956
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Effect of Yield Strength on Wear Rates of Railway Wheels
By J. W. van der Merwe, A. S. Bolokang, M. J. Phasha, V. J. Matjeke, C. Moopanar
"Excessive wear rates on railway wheels can result in rolling-stock derailments. If wear is detected early the possible derailments can be prevented by prematurely replacing wheelsets, although the in
Jan 1, 2016
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Support selection of mine roadways by means of a computer program
By Erdal Ünal
The computer program introduced in this paper is based on design guidelines developed for selection of support systems used in mine roadways. The support types considered include rock bolts as well as
Jan 1, 1989
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The Mineral Industry Of Other West African Countries - Benin (aad6fb24-82bb-41fa-bae0-1430c47ba78d)
By George A. Morgan
Output of mineral products was estimated to be unchanged in 1983 from that of 1982 with the exception of petroleum. The country began production of crude oil from the Seme Oilfield, and all output was
Jan 1, 1985
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Experiences with a New Generation Automated Long Hole Drilling Rigs at LKAB Kiruna Mine in Northern Sweden
By Patrik Ericsson
During the 90?s Atlas Copco and LKAB developed a pioneering fully automatic long hole production drilling system based on the Atlas Copco Simba W469 drill rigs. These drill rigs have since then drille
May 1, 2007
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The Valuation of Mineral in the Ground with Particular Reference to Expropriation
State ownership of mineral in the ground is not newthe Regalian Right is an ancient concept. And the compulsory purchase of land and the minerals beneath it by the State or a body approved by the Stat
Jan 1, 1957
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Notes on the Engineering Design of Tungsten-Carbide Rock Bits
In presenting this paper the author has in view a twofold purpose. In the first place, it is intended to set forth for the benefit of practical mining men some account of the principles underlying the
Jan 1, 1950
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IC 6418 Men and Mines
By Scott Turner
Many of you radio listeners have probably never seen a mine . You may be glad of it, but you should not forget that there is a vast army of men in this country who not only have to see mines , but hav
Dec 1, 1930
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NAT 2008 Full Proceedings - NAT2008
By Bradford F. Townsend, Marc R. Kritzer, Michael F. Roach, Dennis Ofiara
All Rights Reserved. Printed in the United States of America. Information contained in this work has been obtained by SME, Inc. from sources believed to be reliable. However, neither SME nor its autho
Dec 1, 2008
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Laboratory Experiences in the Heat Hardening of Australian High Grade Iron Ore Pellets
By OÆBrien R. T
A small static bed was used to study the thermal cycles required for the heat hardening of pellets based on synthetic magnetite concentrates and a naturally fine hematite. This apparatus can be employ
Jan 1, 1963
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New Dragline Bucket Improves Stripping Efficiency
By Dean Bray
During the past three years, a new rear-dumping dragline bucket technology has been patented, developed and tested at North Dakota coal mines. Field testing has shown that this new concept in draglin
Jan 1, 1999
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The spray conversion of nickel flash-furnace matte
By Kobayashi M, Kametani H
Particles of nickel flash furnace malle (45 per cent i) were oxidized in a dropping-particle furnace. The particles melted and the molten drops simulated those produced by the atomization of molten ma
Jan 1, 1986
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Reservoir Engineering - General - Some Practical Considerations in the Design of Steam Injection Wells
By R. C. Earlougher
Jan 1, 1970
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Geology and setting of the Red Mountain gold-silver deposits, northwestern British Columbia
By D. A. Rhys, M. Sieb, M. A. Prefontaine, C. L. Swanson, S. R. Frostad, H. Q. Smit
"Gold-silver mineralization at Red Mountain (1992 resource of 2.5 million tonnes grading 12.8 g/t Au and 38.1 g/t Ag) occurs within several discrete zones within a folded sequence of Middle to Late Tr
Jan 1, 1995
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Hydrothermal activity and first characterization of hydrothermal mineralization and fluids from the Southern New Hebrides Arc (Vanuatu, SW Pacific)
By Florian Häckel, Ulrich Schwarz-Schampera, Benjamin Bühring, Katja Schmidt, Dieter Garbe-Schönberg, KoschinskyM Andrea
"The Vanuatu island arc and its adjacent back-arc basins form part of the southern New Hebrides subduction system in the southwestern Pacific Ocean within a triangle defined by the Solomon Islands, Ne
Sep 1, 2014
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RI 9418 - Canopy and Base Load Distribution on a Longwall Shield (14a010d7-73b6-499e-aefd-dc1cae4d5747)
By Thomas M. Barczak
This US. Bureau of Mines report examines the roof and floor contact pressure provided by the interaction of a shield with the surrounding strata. Controlled forces were applied to an 800-ton two-leg s
Jan 1, 2010