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RI 5848 Dissolution Of Zinc From Sphalerite At Elevated Temperatures And Pressures ? Summary
By Martin H. Stanczyk
The direct dissolution of a typical zinc sulfide flotation concentrate by elevated temperature and pressure leaching was investigated. The concentrate assayed about 55 percent Zn, 32 percent S, 6 perc
Jan 1, 1961
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RI 8497 Preparation and Chlorination of Titanium Carbide From Donflestic Titaniferous Ores
By G. W. Elger
The Bureau of Mines conducted laboratory and larger scale studies on samples of domestic perovskite and ilmenite ore concentrates to devise a procedure for recovering TiC from these ores. From the con
Jan 1, 1980
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IC 7416 Limestone as Building Material
By Nan C. Jensen, Oliver Bowles
Stone , the foundation of the continents and the floor of the oceans , is one of the most substantial and enduring of all substances that constitute the material universe . Stone furnished rude shelte
Oct 1, 1947
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RI 8898 The Effect of Water Vapor and Water Droplets on the RAM-1 (Preliminary Results)
By R. P. Vinson
The Bureau of Mines examined the effects of high humidity and water droplets on the GCA Corp. real-time aerosol monitor (RAM--l). which uses a lO4mm cyclone preseparator. Tests were conducted both in
Jan 1, 1984
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RI 7215 Horizontal Zinc Retorts - With Appendix On Statistical Sampling Plan For Zinc Retort Research By F. Reid Creech
By M. E. Tyrrell
Research objectives were to determine the reasons for erratic behavior of semisilica horizontal zinc retorts in service; to investigate potential corrective measures including the possible utilization
Jan 1, 1969
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IC 8314 Pneumatic Transportation Of Solids - Proceedings: Institute Of Gas Technology - Bureau Of Mines Symposium, Morgantown, W. Va., October 19-20, 1965
A symposium on pneumatic transportation of solids was held at Morgantown, W. Va., October 19-20, 196'), under the cosponsorship of the Institute ref Gas Technology. Chicago, Ill., and the Bureau
Jan 1, 1966
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IC 6787 Placer Mining In The Western United States - Part II. Hydraulicking, Treatment Of Placer Concentrates, And Marketing Of Gold ? Introduction
By E. D. Gardner
This paper is the second of a series of three on placer mining in the western United States. The first paper4 discusses the history of placer mining in the Western States and the production of placer
Jan 1, 1934
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IC 8314 Pneumatic Transportation Of Solids - Proceedings: Institute Of Gas Technology-Bureau Of Mines Symposium, Morgantown, W. Va., October 19-20, 1965 ? Introduction
A symposium on pneumatic transportation of solids was held at Morgantown, W. Va., October 19-20, 1965, under the cosponsorship of the Institute ref Gas Technology. Chicago, Ill., and the Bureau of Min
Jan 1, 1966
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RI 6535 Characteristics of Products Obtained by Oxidation of Anthracite ,With Concentrated Nitric Acid
By M. H. Kersten, G. A. Brady, Jerry W. Ramsey
Anthracite samples were oxidized with nitric acid to prepare products representing intermediate stages of oxidation . Similar oxidizing conditions affected different anthracites to varying degrees as
Jan 1, 1964
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RI 5401 Analyses Of Tipple And Delivered Samples Of Coal (Collected During The Fiscal Year 1957) ? Introduction
By S. J. Aresco
The Bureau of Mines has been active in promoting the purchase of coal for Government use under specifications that define the requirements in terms of heating value of the coal, expressed in British t
Jan 1, 1958
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OFR-14-90 Source And Bedrock Distribution Of Gold And Platinum-Group Metals In The Slate Creek Area, Northern Chistochina Mining District, East-Central Alaska
By Jaffrey Y. Foley
Placer gold and platinum-group metals (PGM) In the Slate Creek area, northern Chistochina Mining District, are derived from silicified and carbonate-altered, Cretaceous-Tertiary (?) dikes and related
Jan 1, 1990
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IC 8348 Fly Ash Utilization - Proceedings: Edison Electric Institute-National Coal Association-Bureau Of Mines Symposium, Pittsburgh, Pennsylvania, March 14-16, 1967 ? Introduction
Over 500 industrial, academic, and government representatives from Europe, Canada, and the United States attended the first large symposium ever held in this country on fly ash utilization and technol
Jan 1, 1967
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RI 4167 Sulfur in Low-Gravity Fractions of Some Bituminous Coals
By Thomas Fraser, William L. Crentz
"INTRODUCTION Sulfur is a most damaging impurity in many of our American coals. From the older coal industry of Europe and Britain we can apparently learn but little about the problem of preparing and
Dec 1, 1947
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RI 9514 - Application of Oxidation-Reduction Potential and pH To Investigate a Ferric Oxide Waste Disposal Pond and a Lead Processing Waste Site
By Alexander May
The U.S. Bureau of Mines investigated the application of oxidation-reduction potential (ORP) and pH measurements to environmental studies of mining and mineral processing wastes, and developed a compu
Jan 1, 2010
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RI 5013 Anthracite Mechanical-Mining Investigations Progress Report 5: Recovery Of Anthracite In A Steeply Pitching Bed By Induced Caving ? Summary And Conclusions
By Andrew Allan
During recent years underground production for the Pennsylvania anthracite region has reached the lowest output per man per day figure of the last decade and a half. This fact, combined with increased
Jan 1, 1953
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Immunology of Mineral Pneumoconioses
By R. Burrell, N .. L. Lapp
"Except for asthma and pulmonary infections, the types of lung disease that have been of immunologic interest the longest are the various mineral pneumoconioses. Because of their chronicity, type of p
Mar 1, 1992
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RI 7245 Separation Of Feldspar, Quartz, And Mica From Granite
By T. E. Hill
The Bureau of Mines investigated the possibility of physically separating Missouri and Minnesota granites into commercially usable fractions of feldspar, quartz, and mica by mineral dressing technique
Jan 1, 1969
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RI 8821 - Shaft Furnace Reduction-Oxidation Roasting of Pelletized Alunite Dust
By J. M. Riley
The Bureau of Mines investigated a promising new technology for recovering A1203 from alunite to support the Bureau's alumina miniplant project. Results are presented for a study of the technical
Jan 1, 1983
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RI 8317 - Experimental Studies On The Origin And Accumulation Of Coalbed Gas
By Ann G. Kim
The Bureau of Mines investigated factors that influence the formation of methane and other hydrocarbon gases in coal, which is an integral part of the coalification process. Coalification begins with
Jan 1, 1978
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IC 9312 Bismuth-Uses, Supply, And Technology
By Stephen M. Jasinski
The development and industry adaptation of advanced technologies have led to many important uses for bismuth and its compounds. Bismuth-base alloys are essential for manufacturing jet engine turbine b
Jan 1, 1992