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Minerals Beneficiation - The Effect of Fluid Viscosity on Cyclone Classification
By J. A. Herbst, G. E. Agar
The effect of fluid viscosity on the classification of solids in a liquid-solid cyclone was investigated. The separation size was found to be proportional to Additionally, it was found that the pre
Jan 1, 1967
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Redesign And Construction Of A Tailings Dam To Resist Earthquakes
By C. O. Brawner
INTRODUCTION Tailings dams up to about 200 ft. high are proposed to store tailings for a major mining operation on Marinduque Island in the Philippines. The original design of the dam utilized a c
Jan 1, 1972
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An Explanation of the Flotation Process
By Arthur Taggart
INTRODUCTION THE flotation process for the concentration of ores is a method by means of which one or more of the minerals in the ore (usually the valuable ones) are picked up by means of a liquid fi
Jan 8, 1916
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Chattanooga Paper - Experience with the Gayley Dry Blast at the Warwick Furnaces, Pottstown Pa.
By Edward B. Cook
The installation of the Gayley dry-air process appealed specially to the management of the Warwick Iron & Steel Go., for the reason that for fifteen years records had been kept at the works of the com
Jan 1, 1909
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Crestmore Makes a Change
By R. H. Wightman, C. D. Chandler, P. B. Nalle
SURFACE quarrying at the Crestmore Div. of Riverside Cement Co. in California was started in 1909. In the early 1920's it was considered that these deposits were nearly exhausted for the equipmen
Jan 4, 1957
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Petroleum Economics - World Consumption of Petroleum and Related Fuels during 1939 (With Discussion)
By V. R. Garfias, R. V. Whetsel, J. W. Ristori
World consumption of petroleum and related fuels for civil purposes in 1939 was close to 2,024,000,000 bbl., or approximately 110,000,000 bbl. more than in 1938, the United States accounting for 96,00
Jan 1, 1940
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Mineral Dressing Fundamentals
By John Dasher, M. C. Chang
The Crucible mine in Pennsylvania, operating on Pittsburgh seam coal, is rated at 5000 tpd. The washing plant, built in 1943, is rated at about 400 tph, using hydroseparator boxes to wash the coarse c
Jan 3, 1959
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Petroleum Economics - World Consumption of Petroleum and Related Fuels during 1939 (With Discussion)
By J. W. Ristori, R. V. Whetsel, V. R. Garfias
World consumption of petroleum and related fuels for civil purposes in 1939 was close to 2,024,000,000 bbl., or approximately 110,000,000 bbl. more than in 1938, the United States accounting for 96,00
Jan 1, 1940
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Iron and Steel Division - Sampling Liquid Steel for Oxygen Content: A Further Evaluation of the Bomb Technique
By S. Gilbert, G. R. Bailey
A further evaluation of the bomb-sampling method for determining the oxygen content of liquid steel is presented. The results of this study and their close agreement with the results of an earlier eva
Jan 1, 1955
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Building The West
IN CHAPTER I it was shown that the approximate market value of the copper produced at the twelve big Porphyry mines from 1905 to 1931, inclusive, was $2,821,300,000. This represented the refined metal
Jan 1, 1933
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Institute of Metals Division - Low-Temperature Mechanical Properties of a Solution-Hardened Niobium (Columbium) Alloy
By D. E. Peacock, B. Harris
The mechanical behavior of a niobium (columbium)TUNG alloy containing 20 wt pet Ta. 15 wt pet W, and 5 wt pct Mo has been studied in the temperature range 77° to 423°K. All specitrzens tested, apart f
Jan 1, 1965
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Design of Permanent Ground Support Structures For Shafts at the Cathedral Bluffs Project
By I. A. Lange, A. M. Richardson
Although methods for determining shaft lining thickness are well documented, little attention has been given to the design of station breakouts and other related shaft ground support structures. This
Jan 1, 1984
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Nepheline Syenite At Blue Mountain
By H. R. Deeth
NEPHELINE syenite is a sodium, potassium, aluminum silicate rock occurring in many countries. Large deposits have been investigated in Russia, India, and Norway and in the U. S., where it is known to
Jan 11, 1957
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Development of a Thermoadhesive Method For Dry Separation of Minerals
By R. J. Brison, O. F. Tangel
The development of a new method of mineral separation was sponsored by the International Salt Company, which requested Battelle Institute to investigate means for improving the quality and appearance
Jan 8, 1960
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Mine Ventilation - Holland Tunnel (Hudson River Vehicular Tunnel) (with Discussion)
By Ole Singstad
The legislatures of New York and New Jersey, determined in 1919 that a vehicular tunnel should be built under the Hudson River. On July 1, 1919, an engineering staff was organized with the late Cliffo
Jan 1, 1927
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Graphite
By George D. Graffin
The first use of graphite is lost in the mists of time. It was used by primitive man to make drawings on the walls of caves and by the Egyptians to decorate pottery. As early as 1400 A.D. graphite cru
Jan 1, 1975
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Conference on Production and Design Limitation and Possibilities for Powder Metallurgy (Metal Technology, January 1945) - Brushes and Allied Powder-metal Parts
By R. R. Hoffman
The name L'brush,l as applied to the parts to be briefly considered in this paper, is not clearly descriptive of the design and function of those parts when the usual definition of the word is ap
Jan 1, 1945
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Economics - Mine Management (1962 Jackling Lecture) (MINING ENGINEERING, 1962, vol. 14, No. 5, p. 37)
By G. M. Wiles
The increasing number of problems of the modem mine manager has led the author to discuss the art of management. He lists the principles concerning selection of personnel, exploitation and development
Jan 1, 1962
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Fundamental Phase Behavior of Hydrocarbons
By John Sherbourne
Much valuable scientific research has been performed in recent years on the subject of phase behavior of hydrocarbons. ? 1-11 Engineers employed in petroleum production are interesting themselves in t
Jan 1, 1940
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Capillarity - Permeability - Determining Gravity Drainage Characteristics on the Centrifuge
By J. W. Marx
A method is given for predicting the complete gravity drainage characteristics of arbitrarily long columns from centrifuge drainage measurements on reconstituted core samples. Oil residuals correspond
Jan 1, 1957