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RI 9503 - Method of Comparing Initiating Strength of Detonators Using Adjustable-Sensitivity Liquid Explosive
The U.S. Bureau of Mines (USBM) has developed a test procedure to compare the initiating strength of detonators by using adjustable-sensitivity liquid explosives. Various tests of detonator strength a
Jan 1, 2010
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Introduction (f021bf21-e10f-41e4-9b75-c54b8612d619)
Research 83 highlights significant studies conducted during the past fiscal year at Bureau facilities and offices. Readers who want more information about the projects and studies summarized here can
Jan 1, 1983
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RI 8792 - Corrosion of Selected Metals and a High-Temperature Thermoplastic in Hypersaline Geothermal Brine
By R. K. Conrad
The Bureau of Mines conducted corrosion research to determine suitable construction materials for geothermal resource recovery plants. Weight loss, pitting and crevice corrosion, U-bend stress corrosi
Jan 1, 1983
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Employment And Injuries In The Metal And Nonmetal Industries (58fc3dbe-5b2b-45ce-9d71-7c1d0c924625)
By Forrest T. Moyer
INJURY experience and employment data are presented in this chapter for metal and nonmetal mines, stone quarries, sand and gravel pits, iron blast-furnace slag plants, and metallurgical plants (includ
Jan 1, 1963
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IC 7128 Construction Of The Bingham-Copperfield Vehicular Tunnel ? Introduction
By L. S. Breckon
This paper describes the methods and equipment used by the Utah Copper Co. in constructing a vehicular tunnel at Bingham Canyon, Utah, Completion and use of this tunnel for vehicular and pedestrian tr
Jan 1, 1940
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RI 9023 - Reclaiming Heavy Metals From Wastewater Using Magnesium Oxide
By D. N. Tallman
The electrokinetic properties of MgO have been utilized to simultaneously filter suspended solids and remove trace amounts of dissolved heavy metals from synthetic mine water. Greater than 95 pct remo
Jan 1, 1986
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IC 7854 Exploration Development, And Costs Of The Stormy Day Tungsten Mine, Pershing County, Nev. ? Summary
By A. C. Johnson
This report describes exploration, development, and exploitation methods, and summarizes costs at the Stormy Day mine, which was discovered in 1941. Several shipments of tungsten ore were made in 1944
Jan 1, 1958
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RI 3178 The Use Of Lime In A Salt Solution For Removing Hydrogen Sulphide From Natural Gas ? Introduction
By Harold P. Rue
The problem of removing hydrogen sulphide from natural gas has become within the last few years one of major importance to the natural gas and petroleum industry. Several gas fields in the United Stat
Jan 1, 1932
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RI 9332 - Evaluation of Ultrasonic Measurement Systems for Bolt Load Determinations
By Stephen C. Tadolini
The U.S. Bureau of Mines has developed ultrasonic measurement instrumentation capable of measuring strains and elongations on tensioned and untensioned mine roof bolting systems. This report evaluates
Jan 1, 1990
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Numerical Modeling Procedures For Practical Coal Mine Design (237d1a0f-d46f-4124-9918-9eab02bc2008)
By R. K. Zipf
A method is presented for creating realistic numerical models for practical coal mine ground control. The method includes procedures to collect the necessary mechanical input parameters from a geolog
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RI 6234 Statistical Analysis Of Diamond-Drill Sample Data From The Cebolla Creek Titaniferous Iron Deposit, Gunnison County, Colo.
By R. D. Berkenkotter
Titanium and iron assays obtained from cores of three diamond-drill holes from the Cebolla Creek titaniferous iron deposit were evaluated by statistical techniques to obtain information concerning the
Jan 1, 1963
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IC 9308 Applicability Of Electrical Methods In Deep Detection And Monitoring Of Conductive Lixiviants
By Jay C. Hanson
Various electrical and electromagnetic (EM) geophysical techniques are currently being evaluated by the U.S. Bureau of Mines for their effectiveness in the detection and monitoring of electrically con
Jan 1, 1992
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Effect of Coal Type and Oxyfuel Combustion Parameters on Pulverised Fuel Ignition
By K. L. Cashdollar, C. K. Man, J. R. Gibbins
Oxyfuel combustion is currently one of the principal technological options being considered for capturing carbon dioxide from pulverised coal power plants. In oxyfuel combustion, coal is burnt in a mi
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RI 9055 - Hydrometallurgical Process for Producing Lead and Elemental Sulfur From Galena Concentrates
By Agnes Y. Lee
The Bureau of Mines has developed an effective hydrometallurgical method to recover high-purity Pb metal and elemental S from concentrates. This low-temperature process eliminates S gases and Pb emiss
Jan 1, 1986
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OFR-162(2)-81 Interactive Mine-Power-System Analysis - User's Manual
By Richard A. Rivell
This document is a users manual intended as a reference for personnel interested in the analysis of coal-mine-electrical-power systems under either normal operating conditions or fault situations. The
Jan 1, 1980
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RI 9080 Stemming Ejection and Burden Movements From Small Borehole Blasts
By John W. Kopp
Stemming is used in blasting operations to help contain explosive gases as long as possible. Stemming can reduce airblast, improve fragmentation, and reduce the chances of hot explosive gases igniting
Jan 1, 1987
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IC 7081 What Is The Responsibility Of The Coal-Mine Official In The Present Change To And Future Of Mechanized Mining - Introduction
By D. Harrington
The placing of much, sometimes practically all, of the burden of the expense of mine accidents on the shoulders of the mine operator by compensation laws, and the fact that the problem of protecting t
Jan 1, 1939
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OFR-39(3)-77 Accident Cost Indicator Model To Estimate Costs To Industry And Society From Work-Related Injuries And Deaths In Underground Coal Volume III. Supporting Data
By Daniel G. DiCanio
This report describes a computer-based model for estimating the tangible costs of injuries and deaths from work-related accidents in underground coal mines. The study undertook to identify and quanti
Jan 1, 1976
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RI 5034 Storage Of Low-Rank Coals ? Introduction And Summary
By R. R. Allen
[The utilization of Western coals and lignite is a continuing study of the Bureau of Mines, and storage of these fuels is of paramount importance. Since the seasonal demand for coal in the Western Sta
Jan 1, 1954
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RI 3564 Progress Reports - Metallurgical Division - 45. Ore-Testing Studies. 1939-40 - 45. Ore-Testing Studies Of The Ore-Dressing Section. 1939-40
By A. L. Engel
[Thi;. re:9ort presents re3ults of investigations of problema a3signed as ore-testing projects to the Ore-Dressing Section, t.fetal1urgica.l Div:biion, of the Bureau of Ii.fines at the .fississippi?Va
Jan 1, 1941