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RI 6217 Examination Of An Experimental Iron Blast Furnace After Quenching With Nitrogen
By J. P. Morris
An experimental blast furnace in normal operation was quenched by substituting cold nitrogen for the hot blast air. More than 2,200 samples from the stack, bosh, and hearth were taken; 500 of these we
Jan 1, 1963
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MLA 8-88 - Mineral Resources Of The Lemhi Range Study Area, Lemhi And Custer Counties, Idaho
By Eric E. Cather
In 1984 and 1986, at the request of the U.S. Forest Service, the U.S. Bureau of Mines conducted a mineral appraisal of the 315,000-acre Lemhi Range study area. This area is located in Lemhi and Custer
Jan 1, 1988
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OFR-113-81 The Spontaneous Heating Of Coal And The Role Of Moisture Transfer
By J. B. Stott
The performance of an adiabatic calorimeter for measuring heats of oxidation of coal is assessed and suggestions made for its improvement and calibration. The use of magnetic analysers for measuring
Jan 1, 1980
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RI 3440 Reclamation Of Stripped Coal Land (562de5e2-d1ec-435f-b520-6a08692e4239)
By Albert L. Toenges
A phase in strip mining of bituminous coal is the overturning of the surface of the land. The purpose of this report is to acquaint the operators and others interested in stripping with the work that
Jan 1, 1939
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IC 8072 Quadratic Functions For Iron Radiation, 0° To 180° 2? ? Summary
By Ronald M. Lewis
Quadratic functions, Q(hkl), are given to six places in increments of 0.01° for 2? from 00 to 90° for FeKa and from 25° to 180° for FeKa1. The wavelengths used for Fe in the computation are those agre
Jan 1, 1961
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Longwall Shield Recovery Using Mobile Roof Supports
By Allen McComas, Frank Chase, Phyllip Worley
Longwall mining has gained the reputation as being the safest extraction method in underground coal mines. However, one of the most difficult tasks associated with longwall mining is moving the face
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IC 6878 Notes On Testing The Explosibility Of Coal Dusts And A Proposal To Have An International Test Method
By George S. Rice
The following paper was presented at an International Conference on Mine Safety Research held at Dortmund, Germany, September 23-28, 1935, inclusive. This conference was attended by representatives of
Jan 1, 1936
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RI 5777 Recovering Aluminum And Fluorine Compounds From Aluminum Plant Residues ? Introduction And Summary
By R. S. McClain
The Federal Bureau of Mines investigated residues from aluminum plants, to determine if carbon could be removed by flotation while recovering fluorine and aluminum compounds for recycling to the reduc
Jan 1, 1961
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The Mineral Industry Of Other Areas Of The Far East And South Asia ? Bangladesh (fb1342d6-54cb-4d62-8550-0c8c3ee7456a)
By E. Chin
The only economically significant mineral exploited in Banglades - during 1981 was natural gas. Nitrogenous fertilizer production was important to the agricultural sector and was totally dependent on
Jan 1, 1983
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RI 3431 House Movement Caused By Ground Vibrations ? Introduction
By J. R. Thoenen
For several years the Bureau of mines has been investigating the characteristics of ground vibrations produced by quarry blasts. Considerable basic information has been obtained in the course of this
Jan 1, 1938
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RI 3431 House Movement Caused By Ground Vibrations ? Introduction (f084d160-37aa-4764-86e3-1d24b7a3ece2)
By J. R. Thoenen
For several years the Bureau of mines has been investigating the characteristics of ground vibrations produced by quarry blasts. Considerable basic information has been obtained in the course of this
Jan 1, 1938
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RI 3613 Manganese Investigations - Metallurgical Division - 3. Ore-Dressing Studies Of Manganese Ores - Concentration Of Manganese Nodules From Chamberlain, S. Dak. ? Introduction (1766c14f-25bc-49ae-83cb-1d5234e59ac9)
By F. D. DeVaney
The low-grade deposits of manganese ores along the Missouri River near Chamberlain, S. Dak., are known to contain one of the largest reserves of manganese in the United States. Manganese occurs as con
Jan 1, 1942
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RI 3613 Manganese Investigations - Metallurgical Division - 3. Ore-Dressing Studies Of Manganese Ores - Concentration Of Manganese Nodules From Chamberlain, S. Dak. ? Introduction
By F. D. DeVaney
The low-grade deposits of manganese ores along the Missouri River near Chamberlain, S. Dak., are known to contain one of the largest reserves of manganese in the United States. Manganese occurs as con
Jan 1, 1942
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RI 7388 Columbium Alloy Development With Boron, Hafnium, And Tungsten
By H. R. Babitzke
As part of a continuing project to develop refractory metal alloys for high-temperature structural applications, the Bureau of Mines applied solid solution and precipitation strengthening techniques t
Jan 1, 1970
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RI 8720 Recovery of Tungsten From a Hydrothermally Altered Deposit
By A. E. Raddatz
The Bureau of Mines is investigating methods for recovering tungsten from domestic resources. A calcine-quench-leach (CQL) technique was developed for the extraction of tungsten from the Golconda, Nev
Jan 1, 1982
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Statistical Summary (6bfb89b7-cae2-4aaa-a701-74d3608baa37)
By d&apos, Kathleen J. Amico
This summary appears in Minerals Year-book volumes I and III, which cover mineral production in the United States, its island possessions, the Canal Zone, and the Commonwealth of Puerto Rico, as well
Jan 1, 1966
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IC 8069 An Economic Analysis Of Underground Gasification Of Coal ? Introduction
By G. D. Bakulev
Economic Importance of Gasification of Fuel and Brief Outline of Development of Underground Gasification of Coal in the U.S.S.R. The underground gasification of fuel offers a number of economic and s
Jan 1, 1962
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RI 6098 Rapid Determination Of Permeability In Porous Rock
By Jerry B. F. Champlin
The successful injection of liquids into subsurface permeable formations for production stimulation, storage, or waste disposal requires a rapid, precise, and accurate method of determining the permea
Jan 1, 1962
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RI 3049 Concentration of Chromite
By H. A. Doerner
"The pure mineral chromite, FeO.Cr203, consists of ferrous and chromic oxides, chemically united in equal molecular proportions. Unfortunately, pure chromite as defined above appears to be a rare exce
Nov 1, 1930
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MLA 14-93 - Identified Mineral Resources Of The Needles 1°X 2° Map Quadrangle, California
By Terry R. Neumann
This document, prepared for the U.S. Bureau of Mines Regional Mineral Assessment Program, presents data pertinent to the mineral resource assessment of the Needles 1° x 2° map quadrangle (excluding th
Jan 1, 1993