McLaughlin, William C. ; Thomas, L. A. (Lloyd A.) ; ...
Corporate Authors:
United States. Bureau of Mines.
Published Date:
1983
Series:
Report of investigations (United States. Bureau of Mines) ; 8811
Description:
"Under a cooperative agreement, the Bureau of Mines, Magma Copper Company, and Asarco, Inc., tested backfilled ground support systems at two elevation...
Report of investigations (United States. Bureau of Mines) ; 8801
Description:
"Four bit designs, two conical and two radial, were tested in coal against a 60 deg. Conical reference bit to obtain data on orthogonal cutting forces...
Report of investigations (United States. Bureau of Mines) ; 8809
Description:
"The Bureau of Mines investigated thermodynamic properties of mnso4 and 2cdo.Cdso4 to obtain basic thermodynamic data applicable to the treatment of m...
Madsen, B. W. (Brent W.) ; Groves, R. D. (Rees D.) ;
Corporate Authors:
United States. Bureau of Mines
Published Date:
1983
Series:
Report of investigations (United States. Bureau of Mines) ; 8827
Description:
"The Bureau of Mines conducted a large-scale (6.4 T), long-term (2,165 days) test to gain a better understanding of the leaching characteristics of ch...
Report of investigations (United States. Bureau of Mines) ; 8791
Description:
"Based on earlier tests that showed steel to be much more likely to cause frictional ignition than tungsten carbide, the Bureau of Mines redesigned co...
Report of investigations (United States. Bureau of Mines) ; 8820
Description:
"The Bureau of Mines conducted a series of ignition tests with two types of conical bits (plumb bob and pencil) used on continuous mining machines, to...
Gerdemann, S. J. (Stephen J.) ; Hansen, J. S. (Jeffrey S.) ;
Corporate Authors:
United States. Bureau of Mines.
Published Date:
1983
Series:
Report of investigations (United States. Bureau of Mines) ; 8814
Description:
"In support of its objective to improve mine safety, the Bureau of Mines has searched for better materials and systems to anchor roof bolts. This repo...
Tuscaloosa Research Center (United States. Bureau of Mines)
Published Date:
1983
Series:
Report of investigations (United States. Bureau of Mines) ; 8824
Description:
"The Bureau of Mines is investigating a dewatering technique for coal- clay waste that uses a flocculant, polyethylene oxide (peo). This flocculant fo...
Report of investigations (United States. Bureau of Mines) ; 8793
Description:
"The Bureau of Mines investigated fumes generated by selected welding materials used in mines in order to help determine their relative hazard potenti...
Report of investigations (United States. Bureau of Mines) ; 9144
Description:
"This report describes Bureau of Mines research to develop methods to evaluate loading on longwall roof supports to permit better design and more effi...
Report of investigations (United States. Bureau of Mines) ; 8872
Description:
"A remote-actuated stench gas fire-warning system has been designed and tested by the Bureau of Mines. This system makes use of the hardwire network f...
Report of investigations (United States. Bureau of Mines) ; 8796
Description:
"The Bureau of Mines investigated the caustic extraction of alumina and soda from retorted dawsonite-bearing oil shale, as part of a program to devise...
Riley, J. M. (James M.) ; Edlund, V. E. (Vernal E.) ; ...
Corporate Authors:
United States. Bureau of Mines.
Published Date:
1983
Series:
Report of investigations (United States. Bureau of Mines) ; 8821
Description:
"The Bureau of Mines investigated a promising new technology for recovering al2o3 from alunite to support the Bureau's alumina miniplant project. Resu...
Report of investigations (United States. Bureau of Mines) ; 8819
Description:
"This report presents the results of a joint Bureau of Mines-U.S. Department of Energy project that evaluated a newly developed low- coal mining syste...
Report of investigations (United States. Bureau of Mines) ; 8785
Description:
"Kettlebottoms are columnar masses of rock--the preserved casts of ancient tree stumps--embedded in coal mine roof strata (of which they are a part). ...
Report of investigations (United States. Bureau of Mines) ; 8816
Description:
"The Bureau of Mines surveyed a variety of inorganic ion-exchange materials to determine their suitability for removing valuable accessory elements an...
Report of investigations (United States. Bureau of Mines) ; 8797
Description:
"The Bureau of Mines process for recovering ni and CO from low-grade domestic laterites uses a reduction roast followed by an ammonia, ammonium sulfat...
Simpson, W. W. (Wilfred W.) ; Nichols, I. L. (Ivan L.) ; ...
Corporate Authors:
United States. Bureau of Mines.
Published Date:
1983
Series:
Report of investigations (United States. Bureau of Mines) ; 8787
Description:
"The Bureau of Mines conducted research to determine the effects of potassium trithiocarbonate (kttc), a degradation product of potassium ethylxanthat...
Report of investigations (United States. Bureau of Mines) ; 8789
Description:
"The Bureau of Mines evaluated synthetic fluorspar as a substitute for natural fluorspar flux in basic cupola ironmaking. The synthetic fluorspars tes...
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