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RI 2020 The Potash Industry of the United States and its Possibilities for Future Production (b4afd0bc-26be-4cbe-b2c2-33cd259f399a)
By Arthur E. Wells
"The present and possible future commercial production of potash from various sources in the United Status is discussed below under the following heads:1. Potash from the saline lakes.(a) Nebraska lak
Aug 1, 1919
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GMSG Guideline: Determining the Bond Efficiency of Industrial Grinding Circuits
"Use of the Bond Work Index to size industrial grinding equipment was widely known. Bond also described its application for measuring grinding circuit efficiency. Bond Work Index efficiency has been w
Jan 1, 2016
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New York Paper - The Sulphide Ores of Copper. Some Results of Microscopic Study (with Discussion; see also p. 529)
By L. C. Graton, Joseph Murdoch
I. Introduction......................... 26 1. The Relations of Scale in Geologic Work........ 26 2. General Characteristics of Copper Sulphide Ores..... 29 3. Scope of Present Study...............
Jan 1, 1914
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MEMS Accelerometers in Blast Induced Shock and Vibration Monitoring
By W. J. Birch, R. Farnfield, S. Hosein, C. Johnson
Modern smart phones include accelerometers based on MEMS (Micro Electro Mechanical System) technology giving the possibility to measure both acceleration and orientation. The widespread use of such ph
Feb 6, 2023
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Paracatu Gold Mine - Successful Processing of a Large Low-Grade Ore Body
By Wayne Phillips, Anatalia Silva, Robert Henderson, Tondo. Luis
"Kinross’ Paracatu Mine has 20 years of operational success as one of the lowest grade milloperated gold mines in the world. At year end 2005, Paracatu’s Proven and Probable Reserves were 1.18 billion
Jan 1, 2007
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Climate Alarm's Lessons for New Leaders - Overcoming Fear with Facts for Freedom
People in economically developed societies demonstrate inherent human care for Earth and want to stop pollution. Yet efforts to clean Earth seem bogged in confusion from wildly contradictory and alarm
Jan 1, 2009
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Douglas Centenary Commemoration 1918–2018: Engineering the Science— James Douglas, Early Hydrometallurgy and Chile
By W. William Culver
James Douglas became known in the nineteenth century for two reasons fundamental to his mining career: (1) his experimental work with copper hydrometallurgy, and (2) his grasp of the idea that the qua
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A Sea-Level Canal' at Panama-A Study of Its Desirability and Feasibility
By Lewis M. Haupt
Discussion of the paper of Mr. Granger, presented at the New Haven meeting, February, 1909, and published in Bulletin No. 25, January, 1909, pp. 1 to 37. LEWIS M. HAUPT, Philadelphia, Pa. (communicat
Jul 1, 1909
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Wear
By H. R. Banks
IF you have ever travelled in the valley lying between the Selkirks and the Rockies in the East Koorenay district, you will have noted that the former mountains are rounded and massive, while the serr
Jan 1, 1943
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Exploración Geológica y Geofísica en las Minas de Cercapuquio (III)
De acuerdo a los últimos trabajos realizados sobre la exploración en la mina Cercapuquio, se realizó un muestreo de la veta 53 donde se observó que en la caliza, más allá del ala norte, como en el lug
Jan 1, 1956
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RI 5723 Characteristics Of Petroleum From The Powder River Basin, Wyo. ? Introduction And Summary
By W. J. Wenger
Oil fields in the Powder River Basin of Wyoming have produced 731 million barrels of petroleum through 1959. Production in 1959 was 32 million barrels, the highest production since 1924. The record pr
Jan 1, 1961
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Magnetic Properties of Undercooled Co-Based Alloys Measured by Means of a Faraday-Balance
By Sven Reutzel
Investigations show that Co-based melts embedded by glass flux in a crucible can be under- cooled nearly as strong as samples processed containerlessly by electromagnetic levitation. This allows to me
Jan 1, 2002
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IC 7705 Supplemental Bibliography On Investment And Operating Costs For Chemical And Petroleum Plants - Introduction
By E. E. Harton
Bureau of Mines Information Circular 16, Bibliography of Investment and Operating Costs for Chemical and Petroleum Plants, was published in October 1949 as an aid in making estimates of investment and
Jan 1, 1955
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IC 8570 The Economics Of Byproduct Metals (In Two Parts) 2. Lead, Zinc, Uranium, Rare-Earth, Iron, Aluminum, Titanium, And Lithium Systems
By Alfred Petrick
This report analyzes the byproducts systems of lead, zinc, uranium, rare earths, iron, aluminum, titanium, and lithium. Specific byproduct metals covered are cadmium, germanium, indium, and thallium f
Jan 1, 1973
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OFR-37-90 Design, Fabrication, And Testing Of A Bidirectional Auger
By O. Llewellyn Jack
From September 1978 to December 1983, ESD Corporation (formerly a Division of FMC Corporation) undertook the development and testing of a bidirectional auger under contract with the U.S. Department of
Jan 1, 1983
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Knowledge Is Power: Introducing the Midas, a New Permissible Datalogging System for Use in Mines
By Tristan H. Jones
Beginning in 1987, miniature dataloggers approved by the Mine Safety and Health Administration (MSHA) were publicly available for sale. The principal among these was the model CR21XQM, manufactured by
Jan 1, 2012
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Drilling and blasting research at the Noranda Technology Centre
By L. van Hijfte, A. Piché
"Drilling and blasting are fundamental operations in the mining cycle and constitute an important component of the mining costs. Problems associated with improper drilling and blasting practices can c
Jan 1, 2000
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Institute of Metals Division - Wrought Alloys of the Tungsten-Tantalum-Molybdenum- Columbium System
By E. J. Dulis, A. Kasak, R. C. Westgren
The potential of uirought tungsten- and tantaluw-rich alloys of the W-Ta-Mo-Cb system was investigated for high-strength structural applications above 2500° F. Appreciable strengthening of tung-sten a
Jan 1, 1964
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Bulletin 134 The Use of Mud Laden Fluid in Oil and Gas Wells
By WILLIAM F. McMURRAY, James O. Lewis
The Bureau of Mines is investigating the technology of petroleum and its products, the investigation including well-drilling methods and the transportation, treatment, and utilization of petroleum and
Jan 1, 1916
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Closing the Historic Alaska-Juneau Mine
By Joseph L. Petrillo
In July 1997, Kvaerner Environmental signed a unique contract with Echo Bay Alaska called the Transfer Risk and Accelerate Closure (TRAC). The contract called for Kvaerner to assume the responsibilit
Jan 1, 1999