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RI 3411 Tests Of A Barrier Using Rock Dust In Paper Bags ? Origin Of Investigation (b2f0b7a1-8053-4967-835e-c488203e033e)By H. P. Greenwald
About mid-December 1936, the safety director of a large coal corporation visited the authors at the Bureau's Experimental coal mine to discuss a rock-dust barrier he had invented primarily for us
Jan 1, 1938
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RI 3034 The Effectiveness Of Different Size Rock Dusts In Preventing Coal-Dust Explosions In MinesBy G. S. Rice
The recommendations of the Bureau of Mines on rock dusting practices are embodied, except in a few details, in the Recommended American Practice for Rock-Dusting Coal Mines to Prevent Coal-Dust Explos
Jan 1, 1930
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RI 2131 Durability of Electric Heaters for Gasoline DistillationBy E. W. Dean, W. A. Jacobs
"The petroleum division of the Bureau of Mines in its laboratory investigations, has had occasions to develop a number of types of electrical heating equipment. It was found that electric heaters coul
Jun 1, 1920
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RI 5873 Continuous Analysis Of Helium In Natural Gas By Chromatography ? SummaryBy C. L. Klingman
In extracting helium from natural gas at Bureau of Mines helium plants, a continuous analysis of the helium content of inlet and outlet gas streams is required to determine extraction efficiency. An a
Jan 1, 1961
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RI 5190 Laboratory Recovery Of Germanium And Cadmium In Sphalerite Concentrates ? SummaryBy H. Kenworthy
[Experimental studies were made to develop a laboratory technique for direct removal of cadmium and germanium from sphalerite concentrates. Cadmium- and germanium-bearing concentrates from the Illinoi
Jan 1, 1956
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RI 2264 Separation Of Sphalerite, Silica And Calcite From FluorsparBy John Gross
"Introduction.Southern Illinois and Kentucky are credited with approximately 90% of the fluorspar production of the United States. A small amount of high-grade acid, spar is obtained from the ore by b
Jul 1, 1921
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IC 7122 Novel Device For Collecting Air Samples In Inaccessible Places ? IntroductionBy W. J. Fene
It is often desired to obtain samples of air in places where collection by ordinary methods is not feasible, as in shafts amore means of descent or ascent are not provided, in sewer manholes, in gas o
Jan 1, 1940
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RI 2647 The Resistance Of Coal-Mine Entries To The Flow Air ? Part II. The Resistance Caused By Mine Cars. ? IntroductionBy J. W. Paul
This paper deals with the second phase of an extensive research on coal-mine ventilation factors. A comprehensive report of the entire work is in course of preparation, but abstracts of the various ch
Jan 1, 1924
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RI 8922 - Recovering Zinc-Lead Sulfide From a Geothermal BrineBy L. E. Schultze
The Bureau of Mines devised a technique to recover a Zn-Pb concen-trate from a geothermal brine. More than 99 pct of the Zn and Ph was precipitated by treating the brine with H2S and controlling the p
Jan 1, 1985
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RI 8317 - Experimental Studies On The Origin And Accumulation Of Coalbed GasBy 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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RI 3056 A Device for Determining Work Input to a Laboratory Ball MillBy Stuart R. Zimmerley, John Gross
"In the study of ball-mill grinding at the Intermountain Experiment Station of the United States Bureau of Mines at Salt Lake City, Utah, it was desirable to measure the work input to a ball mill at t
Feb 1, 1931
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RI 3846 Evaluation of Some Binders for Use in Pelletizing SlimesBy T. A. Klinefelter
"INTRODUCTION During the development work on sponge iron by the Bureau of lines it was desired to produce a product of maximum density for the furnace. One means of doing this would be to make a plast
Jan 1, 1946
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IC 8793 Gas Analysis Procedures Applicable To Flue Gas Desulfurization By The Citrate ProcessBy H. R. Beard
The citrate process for sulfur dioxide emission control was developed in pursuit of the Bureau of Mines goal of minimizing the adverse environmental impact of mineral-processing operations. This publi
Jan 1, 1979
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RI 5688 Zirconium-Dysprosium Equilibrium Diagram ? Introduction And SummaryBy J. Croeni
The search for new alloys for application in the atomic energy field had prompted investigation of zirconium-rare earth metal alloys by the Federal Bureau of Mines. In this instance the zirconium-dysp
Jan 1, 1960
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RI 4876 Separation Of Lead, Cadmium, And Germanium Sulfides From Zinc Sulfide ConcentratesBy H. Kenworthy
The objective of this research was to develop methods and determine conditions under which metallic sulfides with lower boiling points than sphalerite may be removed from zinc sulfide concentrates by
Jan 1, 1952
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RI 4604 Investigation Of The Allah Cooper Lead-Zinc Mine, Louisa County, Va.By Wesley A. Grosh
The Allah Cooper mine, in Louisa County, Va., formerly was a producer of lead and zinc. It was believed that the critical shortage of leach and zinc and the fact that some ore had been produced at thi
Jan 1, 1949
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RI 9596 - Reducing Respirable Dust Levels During Bag Conveying and Stacking Using Bag and Belt Cleaner DeviceBy Andrew B. Cecala
The U.S. Bureau of Mines has designed and tested a system called the Bag and Belt Cleaner Device (B&BCD) to reduce dust levels in and around the bag conveying and stacking process. The device physical
Jan 1, 2010
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RI 7261 Chemical And Vegetative Stabilization Of A Nevada Copper Porphyry Mill TailingBy Karl C. Dean
The Bureau of Mines stabilized 10 acres of windblown copper mill tailings at McGill, Nev., by a combination chemical-vegetative procedure. Legumes, winter wheat, wheat-grasses, and wild rye were seede
Jan 1, 1969
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Computerized System For Quantitative X-Ray Diffraction Analysis Of Pyrite In CoalBy R. R. Schehl
The Bureau of Mines has developed a quantitative Analysis for pyrite in coal by X-ray diffraction that can be accomplished in little more than 1 hour. To minimize the sample analysis time, data proces
Jan 1, 1973
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IC 9211 Predicting The Failure Of Electric MotorsBy Gerald T. Homce
A system capable of monitoring a mine electrical power system to detect incipient electrical component failure could significantly improve power system safety and availability. The U.S. Bureau of Mine
Jan 1, 1989