Search Documents
Search Again
Search Again
Refine Search
Refine Search
-
RI 3299 Anhydrous Sodium Sulphate From Saline Deposits Or Brines By A Four-Stage Process (239170ee-57e1-4289-abab-7355805e2758)
By J. E. Conley
[Available statistics show that the demands of the American chemical industry for sodium sulphate have been increasing slightly in recent years. The supply from domestic sources, particularly in the f
Jan 1, 1936
-
RI 4465 The "Carbon-Oxygen Complex" As A Possible Initiator Of Explosions And Formation Of Carbon Monoxide In Compressed-Air Systems
By H. W. Busch
In the course of examinations by representatives of the Bureau of Mines of several compressed-air systems in which explosions had occurred, samples were obtained of the carbon deposits that are formed
Jan 1, 1949
-
OFR-33-78 An Analysis Of Chemical Coal Cleaning Processes
By Sabri Ergun
Cost estimates and technical feasibility are compared for six chemical coal cleaning technologies. The comparison is based on conceptual application of the chemical cleaning methods for removal of pyr
Jan 1, 1977
-
Water Jet Perforation Of Well Casings - Objective
Reduce the cost of modifying uranium well casings so that leaching solutions can pass through, but sand grains are blocked. Approach The well casing and surrounding cement are perforated at th
Jan 1, 1978
-
IC 8393 Computer Usage For Evaluation Of Design Parameters And Cost Of Heat Exchangers - With No Change In Phase And Shell Side Pumping Costs As Prime Parameters
By P. R. Jones
A computer program was written for the design of a shell and tube heat exchanger on a price optimum basis for the following conditions: (1) Triangular pitch; (2) single or multiple pass; (3) heating o
Jan 1, 1968
-
OFR-135-77 Multilift Longwall Mining Methods For Thick Coal Design And Feasibility
By John Wilson
This report describes the performance of Phase I of a project to design, analyze, and demonstrate a multilift longwall mining method applicable to mining coal seams twelve (12) feet or more in thickne
Jan 1, 1976
-
RI 5496 The Nicaro (Cuba) Nickel Ores - Basic Studies, Including Differential Thermal Analysis In Controlled Atmospheres ? Summary
By R. B. Fisher
This report gives the results of mineralogical research on the Nicaro (Cuba) nickel ores and plant products. These studies were made under a cooperative agreement with the General Services Administrat
Jan 1, 1959
-
OFR-6-74 Drilling And Sampling Tertiary Gold-Bearing Gravels At Badger Hills, California
By Russell R. McLellan
Under the Heavy Metals Program, investigations were conducted at the old Badger dill placer mini in Nevada County California to collect data and information regarding drilling and sampling methods and
Jan 1, 2012
-
OFR-213-83 Slack And Overload Rope Protection System
By Holt L. Farley
This report describes the development of an electronic system which detects unsafe slack and overload conditions in underground mine hoist ropes. The Slack and Overload Rope Protection System (SORPS)
Jan 1, 1983
-
IC 8676 Sulfur Content Of Crude Oils
By M. Carrales
This Bureau of Mines report presents information on the sulfur content of crude oil in the United States and in some foreign countries. Data are presented for oil produced in 1971 from fields in 26 St
Jan 1, 1975
-
List of BOM Publications and Articles 1975-01-01 to 1979-12-21 with Subject and Author Index - Special Publiocation
By Shelby Z. Palya
"The Bureau of Mines was established in the public interest to conduct inquiries and scientific and technologic investigations concerning mining and the preparation, treatment, and utilization of mini
Jan 1, 1981
-
RI 8948 - Analysis of Sampling Variance From Certain Platinum and Palladium Deposits in Alaska
By James C. Barker
The analytical variability encountered when sampling for platinum-group metals (PGM) was statistically evaluated during a 1983 study by the Bureau of Mines and the University of Alaska. Sampling proce
Jan 1, 1985
-
Coal-Mine Accidents In The United States 1938 - Introduction
By W. W. Adams
Every man-hour of work performed in and about the coal mines of the United States had a 2-percent heavier death load from accidents in 1938 than in 1937. This is an unorthodox way of stating that the
Jan 1, 1941
-
RI 3819 Reduction of Iron Ore in Clay & Steel Containers
By J. P. Walker
"INTRODUCTION Sponge iron has been made commercially since 1912 at a Swedish ceramic plant; and the product, known as Swedish disk-type nagger sponge iron, has an excellent reputation as a superior fu
Sep 1, 1945
-
OFR-158-83 Develop Data For Review Of Metal And Non-Metal Mine Methane Hazard Classification
By Alastair M. Lumsden
A study was initiated to examine the ways in which a number of foreign countries classify and regulate metal/non-metal mines which experience problems due to naturally-occurring flammable gases. Twent
Jan 1, 1983
-
RI 3653 National Safety Competition of 1941
By W. W. Adams, T. D. Lawrence
"The National Safety Competition conducted by the Bureau of Mines, United States Department of the Interior for the promotion of safety in mines and quarries, has just been closed for seventeenth cons
Jul 1, 1942
-
OFR-82(2)-75 Probe Drill Guidance System - Volume 2 - Appendix A - Computer Program
By Llewellyn A. Rubin
ROUTINES AND SUBROUTINES A- 1 Wait Loop (Wait) A- 2 Receiver Processing (RCVP) A- 3 Control Panel Sequence (CPNL) A-4 Interrupt Routine (INTRP) A- 5 Math Processing Routine (PROC) A-6 Input
Jan 1, 1973
-
RI 3480 Progress Reports - Metallurgical Division - 34. Annual Report Of The Metallurgical Division, Fiscal Year 1939 ? Introduction (f8adc79d-0782-459e-ad3a-6ff2d4c4a06e)
By R. S. Dean
[During t!~c past f isc.~l y~:-.r the Xetzllvz-gicd 3ivi oion has made im- portant contribution-, don,- tlie lines rlictnteil by the Bureau policy of con- servation of domestic rnker~l rcsoul-ces thro
Jan 1, 1940
-
IC 7439 Burning Refuse Dumps at Coal Mines
By J. H. East, D. Harrington
"INTRODUCTION Burning refuse dumps are a common and by no means pleasant sight in most coal-mining distracts; they have been and largely continue to be accepted as a necessary, if undesirable, adjunct
Mar 1, 1948
-
IC 8739 Fuels And Energy Data: United States By States And Census Divisions, 1974
By Lulie H. Crump
Salient information on reserves, production, and consumption of fuels and energy by State is summarized in this Bureau of Mines publication. Reserve and production data are shown for each of the fossi
Jan 1, 1977