Search Documents
Search Again
Search Again
Refine Search
Refine Search
-
RI 3112 Flotation Reagents, 1929
By R. L. Kidd, T. H. Miller
"INTRODUCTION This paper is the seventh of a series of yearly reviews started in 1921 and pre¬sents information gathered in a cooperative investigation undertaken by the United States Bureau of Mines
Aug 1, 1931
-
Statistical Summary (949586b6-b8da-4f98-ad25-eb0908adb9c2)
This chapter summarizes data on crude mineral production for the United States, its island possessions, and the Commonwealth of Puerto Rico. Included also are tables that show the principal mineral co
Jan 1, 1977
-
OFR-29(2)-82 Visual Attention Locations For Operating Continuous Miners, Shuttle Cars, And Scoops: A Summary
By Mark S. Sanders
This report presents a summary of the work reported by Sanders and Kelley (1981). A task analytic approach was used to define information requirements and visual features which served as sources of in
Jan 1, 1981
-
Statistical Summary (4c393c09-c702-4e53-a960-4a280c941176)
By Stephen D. Smith
This chapter summarizes data on crude nonfuel mineral production for the United States, its island possessions, and the Commonwealth of Puerto Rim. Also included are tables that show the principal non
Jan 1, 1988
-
IC 7884 Bibliography of Investment and Operating Costs for Chemical and Petroleum Plants
By Sidney Katell, JOHN H. FABER, BRYCE L. MADDOX
The information abstracted from the various publications appeared in the magazines under such headings as Business and Industry , Chemical Engineering Developments , Companies in the News , Headlines
Jun 15, 1957
-
OFR-201-84 Recovery Of Manganese From Low-Grade Domestic Sources
By S. Malhotra
Processes for the recovery of manganese contained in low-grade domestic sources are evaluated. Conclusions are based on analysis of literature, technical evaluation and cost analysis. The Nossen Nitri
Jan 1, 1984
-
OFR-88-82 Survey Of Safety Procedures For Guarding Blast Affected Areas
By Jerry Bennett
This report describes the results of a survey of current blast area guarding procedures at surface and underground metal/nonmetal mines. It features five case histories (two surface and three undergro
Jan 1, 1981
-
OFR-66-93 Regulatory Aspects Of Submarine Tailings Disposal - The Quartz Hill Case History
By C. A. Hesse
The Quartz Hill Molybdenum Project, In Southeast Alaska, was the first mining project to attempt the permitting of a submarine tailings disposal system in the United States, since the passage of the N
Jan 1, 1993
-
RI 3765 Ore-Testing Studies on Gold & Silver Deposits
By J. A. Woolf, A. P. Towne
"INTRODUCTION A considerable part of the metallurgical work of the Precious Metals Section comprises ore-testing experiments on ores selected as representative of various mining districts on areas. Pr
Aug 1, 1944
-
The Mineral Industry Of Other South Pacific Islands - British Solomon Islands (948c4a57-0485-44f0-8c54-7e4563c76591)
By Walter C. Woodmansee
The only reported mineral production in 1977 was small output of alluvial gold, valued at an estimated $54,320.2 In addition, marine shells are gathered for use in lime manufacture, although output wa
Jan 1, 1981
-
RI 5997 Methods For Producing Alumina From Clay - An Evaluation Of The Sulfurous Acid-Caustic Purification Process - Summary
By Frank A. Peters
This evaluation of the sulfurous acid process for the production of metallurgical-grade alumina is the first of a series concerning various known methods of extracting alumina from low-grade aluminous
Jan 1, 1962
-
RI 7809 Separating Copper From Scrap By Preferential Melting - Laboratory And Economic Evaluation
By Vance G. Leak
A technique for recovering copper and steel from metallic scrap has been developed by the Bureau of Mines based on preferential melting in molten salt baths at 1,150° to 1,250° C, The molten salt, pre
Jan 1, 1973
-
IC 9396 The Essential Role Of Human Factors In Advanced Technology
By Richard S. Fowkes
Advanced technology, including automation and computerized information systems, is being adopted in mining at an ever-increasing rate to improve safety and productivity and to decrease overall costs.
Jan 1, 1994
-
OFR-44-79 Monitoring Of Mine Air Blast Pollutants From Six Explosives Tested In An Underground Mine
By Duane L. Abata
Toxic gases produced by the detonation of six explosives were measured in an underground hardrock metal mine during actual mining operations. The six explosives included two semi-gelatin dynamites, th
Jan 1, 1978
-
IC 8409 Pennsylvania Anthracite Refuse - A Survey Of Solid Waste From Mining And Preparation
By John C. MacCartney
In the Pennsylvania anthracite region, the principal source of U.S. anthracite, refuse disposal problems are common since cities and towns are located over the anthracite measures. The Bureau of Mines
Jan 1, 1969
-
OFR-34-90 Geochemical Sampling Results From Bureau Of Mines Investigations In The Valdez Creek Mining District, Alaska
By Michael D. Balen
The Bureau of Mines (Bureau), in cooperation with the Alaska Division of Geological and Geophysical Surveys (ADGGS), conducted field investigations from 1987 through 1989 in the 5.7 million-acre Valde
Jan 1, 2011
-
MLA 15-94 - Mineral Resource Assessment For The BLM Malheur-Jordan Resource Areas, Oregon - Volume 2
By Joseph Gersic
MINFO has been developed to serve as a frontend for three databases created to store basic minerals information gathered during the minerals resource assessment conducted by U.S. Bureau of Mines(USBM)
Jan 1, 1994
-
RI 7939 Seepage-Environmental Analysis of the Slime Zone of a Tailings Pond
By C. Daniel Kealy
Dissolved and suspended solids are present in the free water of tailings ponds. This Bureau of Mines study was designed to identify the influences of the slime zone in preventing these solids from rea
Jan 1, 1974
-
OFR-89-77 Hoist Radio System For Deep Shafts
By Joseph A. Vanous
The inductive communication system was developed under this contract for use in the hoist of deep mines. This program was a four phase program with experimental dual frequency equipment resulting from
Jan 1, 1976
-
RI 3457 Friability, Slacking Characteristics, And Low-Temperature Carbonization Assays Of Subbituminous Coals Of The Denver, Colo. Region
By Parry. V. F., John B. Goodman
"INTRODUCTION The Denver region coal field, covering an area of approximately 7,640 square miles, extends from the Wyoming State line to the middle of El Paso County, Colo. The coal in this region is
Aug 1, 1939