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  • AIME
    Ore Passes, Tunnels And Shafts

    By David J. Selleck, Eugene P. Pfleider

    9.61. Introduction. Open pit mining methods produce more than 80% of all raw materials today in the United States. Much of this comes either from properties that formerly employed underground methods

    Jan 1, 1968

  • AIME
    Student Associates (dc9d62da-d3e7-4c40-90a1-df05a0e37955)

    Abbott, Robert H., (S'42) Agricultural & Mech. College of Texas, College Sta.. Texas. Abrahamson, Guy C., (S'43) Univ. of California, Berkeley. Calif. Abrego, Alfredo, (S'43) Texas Co

    Jan 1, 1943

  • AIME
    Minerals Beneficiation - Fine Grinding at Supercritical Speeds - Discussion - Correction

    By R. T. Hukki

    John F. Myers (Consulting Engineer, Greenwich, Corm.)—Since the art of comminution has lain practically dormant for many years, it is very interesting that R. T. Hukki approaches the subject with a ne

    Jan 1, 1959

  • AIME
    Coeur D’Alene Profile – 1966 - Introduction

    By John V. Beall

    Hard as the Revett quartzite are conditions governing the deep mines of the Coeur d'Al6ne. In fourscore years of mining, heat and pressure have been the rewards of preseverance. Such obstacles ar

    Jan 7, 1966

  • AIME
    Papers - Zinc - History of the Metallurgy of Zinc

    By W. R. Ingalls

    In reviewing the history of the metallurgy of zinc, I shall pass hastily over what is only of antiquarian interest. That has been excellently treated by Dr. Bernhard Neumann in "Die Metalle" (1904) an

    Jan 1, 1937

  • AIME
    Papers - Mining - Improvements in Mining Practice in the Butte District (Mining Technology, July 1941)

    By E. R. Borcherdt

    Methods and equipment are subject to study in the Butte district at all times in order that advantage may be taken of any new developments that might serve to increase efficiency and lower costs. D

    Jan 1, 1943

  • AIME
    Papers - Mining - Improvements in Mining Practice in the Butte District (Mining Technology, July 1941)

    By E. R. Borcherdt

    Methods and equipment are subject to study in the Butte district at all times in order that advantage may be taken of any new developments that might serve to increase efficiency and lower costs. D

    Jan 1, 1943

  • AIME
    Papers - Concentration - Collector Coatings in Soap Flotation (Mining Technology, July 1943.) (with discussion)

    By Arthur F. Taggart, Nathaniel Arbiter

    The fact that the floatability of minerals with fatty-acid collectors changes as the pH of a pulp varies was utilized in the early days of flotation, when sulphuric acid was used with oleic acid to fl

    Jan 1, 1943

  • AIME
    Papers - Concentration - Collector Coatings in Soap Flotation (Mining Technology, July 1943.) (with discussion)

    By Nathaniel Arbiter, Arthur F. Taggart

    The fact that the floatability of minerals with fatty-acid collectors changes as the pH of a pulp varies was utilized in the early days of flotation, when sulphuric acid was used with oleic acid to fl

    Jan 1, 1943

  • AIME
    Electrolytic Zinc Plant Of American Zinc Company, East St. Louis, Illinois

    By O. H. Banes

    The electrolytic zinc plant of the American Zinc Company located at Sauget, Illinois started operations in April 1941. The plant had a designed capacity of 45(T) per day. The original flow sheet was q

    Jan 1, 1970

  • AIME
    Boston Paper - Husgafvel's Improved High Bloomary for Producing Iron and Steel Direct from Ore

    By F. Lynwood Garrison

    Except in the old Catalan forge, or its modifications, attempts to make iron and steel directly from ore in a practical and economical manner have failed so frequently and completely that such schemes

    Jan 1, 1888

  • AIME
    Iron and Steel Division - Solubility of Nitrogen in Liquid Iron Alloys II Kinetics

    By John F. Elliott, Robert D. Pehlke

    The rate of reaction of nitrogen with liquid iron and with binary alloys of iron and Al, Cb, Cr, Ni, O, S, Si, and W were measured. The surface active elements, oxygen and sulfur, decrease the rate

    Jan 1, 1963

  • AIME
    Coal - Solution Hydrogenation of Lignite in Coal-Derived Solvents

    By D. S. Gleason, D. E. Severson, D. R. Skidmore

    Pittsburg and Midway Coal Co. has modified the German Pott-Broche process, on which patents date back to 1927, to produce on a bench scale liquid products by solution hydrogenation of coal. A continui

    Jan 1, 1971

  • AIME
    Distribution of Tensile Strength in Hard Drawn Copper Wire (ee5ff4ce-74fb-4688-88ab-abc048467c6b)

    By Frank Harris

    THE strength of hard drawn copper wire is a question of considerable importance to both manufacturer and consumer. Unlike steel and alloy wires, in which strength is governed by both chemical and phys

    Jan 1, 1928

  • AIME
    Metallurgical Society of AIME and Divisions Society Officers

    Institute of Metals Division Iron and Steel Division Extractive Metallurgy Division J C Kinnear, Jr, President A W Thornton, Past President W R Hibbard, Jr, Vice-President R W Shearman, Secretar

    Jan 1, 1957

  • AIME
    Coal - Municipal-water Needs vs. Strip Coal Mining

    By Gregory M. Dexter

    Recent litigation in Pennsylvania between three coal-mining companies and a private water company resulted in the payment by the coal companies of the equivalent of about $500,000 to buy a new water s

    Jan 1, 1950

  • AIME
    PART IV - Communications - Activation Energies for Creep of Polycrystalline Nickel Wire

    By J. E. Cannaday, R. J. Austin, R. K. Saxer

    PREVIOUS investigators have determined activation energies and have postulated various controlling mechanisms for creep.'-' Recently Barrett et 01.I5 have suggested, as the result of their w

    Jan 1, 1967

  • AIME
    Theoretical Metallurgy

    By Robert F. Mehl

    EXTENSION of physical and chemical methods of research in the study of metallic behavior continues rapidly, particularly in the correlation of behavior with crystal structure, and in the analysis of e

    Jan 1, 1934

  • AIME
    Wilkes-Barre, Pa.Paper - Electric Power a Factor in the Anthracite Field (with Discussion)

    By W. A. Thomas

    Steam is, and doubtless always will be, the basic power in the anthracite industry, either directly applied through engines and pumps or electrically. The rapidity with which electric power is being a

    Jan 1, 1922

  • AIME
    New York Paper February, 1918 - The Briquetting of Anthracite Coal (with Discussion)

    By W. P. Frey

    The briquet plant of the Lehigh Coal and Navigation Co., at Lansford, Pa., has previously been referred to.' It has passed the stage of experiment and now rests on a foundation practically and fi

    Jan 1, 1918