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Papers - Theoretical - Flow of Heat from an Intrusive Body into Country Rock (T. P. 1677, with discussion)
By C. E. Van Orstrand
An intrusive body is a mass of igneous rock that has migrated upward, presumably from great depths. Great variations in form, composition and depth of burial occur. It is not proposed in this paper to
Jan 1, 1946
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Industrial Minerals - Gamma Ray-Neutron Detector as a Reconnaissance Tool
By L. Moyd, P. Moyd
The first commercially available portable gamma ray-neutron beryllium detector, the Rerylometer, was developed by the same group that developed the first practical portable scintillation counter, the
Jan 1, 1961
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Pyrophyllite Dust-Its Effect and Control
By M. F. Trice
PYROPHYLLITE is a hydrous aluminum silicate (A12Si4010(OH)2)1 that occurs in both the foliated and the massive forms. The foliated variety resembles talc in that it has a greasy feel, a pearly luster,
Jan 1, 1940
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Technical Notes - Allotropic Transformations in Titanium, Zirconium, and Uranium Alloys
By Austin E. Dwight
IT has been shown by Oelsen and Wever' that the effect of a solute element on the allotropic transformation in iron is dependent upon the quantity
Jan 1, 1957
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Natural Gas Technology - Analysis and Prediction of Minimum Flow Rate for the Continuous Removal of Liquids from Gas Wells
By R. G. Turner, M. G. Hubbard, A. E. Dukler
Gas phase hydrocarbons produced from underground reservoirs will, in many instances, have liquid phase material associated with them, the presence of which can affect the flowing characteristics of th
Jan 1, 1970
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Technical Papers and Discussions - Lithium - Laboratory Preparation of Lithium Metal by Vacuum Metallurgy (Metals Tech., June 1947, TP 2179)
By A. W. Schlechten, W. J. Kroll
As this paper is written, the only method for the commercial production of lithium metal is by the fusion electrolysis of LiC1-KC1 mixtures, as first proposed by Gunkz.2 The details of the industrial
Jan 1, 1949
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Petroliferous Rocks In Serra Da Baliza
By Euzebio De Oliveira
ONE of a recent batch of samples from the Serra da Baliza, in the state of Parana, Brazil, contained asphalt and a dark heavy oil; and workmen on the railway from Porto União to Uruguay discovered asp
Jan 4, 1921
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Minerals Beneficiation - Winning Metallic Values from Leach Solutions by Sorption Processes
By W. V. Long, D. H. Reynolds, R. B. Bhappu
Equilibrium distribution coefficients were determined for some monovalent and polyvalent ions for several absorbing and exchanging media as functions of pH and initial ion concentration. Among ions st
Jan 1, 1967
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The Ultimate Source Of Ores.
By Charles R. Keyes
the leaching of near-by rocks, had had no other result than to bring out from obscurity three certain features of practical lmport, all the labor of that controversy would have been well expended. Th
Jul 1, 1910
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Papers - Melting and Casting Metals - Monel Metal and Nickel Foundry Practice (With Discussion)
By E. S. Wheeler
The rapid increase in the use of monel metal and malleable nickel in the form of sheet, rod and tube has resulted in a similar increase in the demand for these metals in the form of castings. These ca
Jan 1, 1930
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PART IV - Communications - Discussion of “Anisotropy of Grain Boundary Mobility in Zone-Refined Aluminum Crystals”
By N. A. Gjostein
From their study of the anisotropy of grain boundary mobility in aluminum, the authors conclude that tilt boundaries have a higher mobility than twist boundaries because the atomic misfit at the pure-
Jan 1, 1968
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Comparative Tests Of Hammer Drill Bits
By Carroll Forbes
INTRODUCTION MANY different shapes of drill bits are in use with hammer drills, but little definite information is available whereby to judge which one of these shapes is the best. The following inv
Jan 8, 1917
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The Application of Large Gas-Engines in the German Iron and Steel Industries
By K. Reinhardt
THE idea of burning blast-furnace gases directly in gas-engines, instead of under steam-boilers, as had previously been done, was first put into practice barely ten years ago, almost simultaneously in
Nov 1, 1906
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PART III - IMD Electronic Materials Committee
Jan 1, 1967
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Iron and Steel Division - Activities in Dilute Liquid Solution Fe-Si-O (TN)
By T. C. M. Pillay, John Chipman
The Si-0 equilibrium in liquid iron was investigated in some detail by Gokcen and Chipman1 who reported equilibrium constants of the following reactions: In each case the thermodynamic equilibrium
Jan 1, 1962
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Proposed Tariff on Copper
By E. E. AGGER, Arthur Notman
THE proposal has been made in a bill introduced into Congress at the last session by Representative Jones of Michigan that an import duty of 6 c. per lb. shall be placed on copper. This action is urge
Jan 1, 1925
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Papers - - Produciton - Foreign - Petroleum Development in France and French Possessions
By H. De Cizancourt
The Pechelbronn (Alsace) field is the only important French producing field. During 1934, development was carried on as in previous years. The total output of this field reached 553,575 bbl. in 1934,
Jan 1, 1935
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A Model Way To Analyze The Mineralogy Of Base Metal Mining Districts
By Joseph Moses Botbol
In passing the judgments essential to his trade, the geologist may be assisted by two new methods. These will enable him to (1) arrange the minerals of a selected group of base metal mining districts
Jan 1, 1970
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Open Pit Mining In 1951
By C. E. McManus
MANY mechanical advances have been made on mining equipment during the year 1951. There have been a number of trends established and many modifications made on open-pit equipment to increase the effic
Jan 1, 1952
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Papers - Descriptive - Mercury Industry in Italy (Mining Tech., Jan. 1948, T.P. 2292, with discussion)
By Edwin B. Eckel
This paper, based on brief field examination and on data supplied by the operators, records the condition of the Italian mercury industry as of March 1945, not long after Italy's collapse. Except
Jan 1, 1949