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  • NIOSH
    Bulletin 226 Treatment of Maganese-Silver Ores

    By Galen H. Clevenger, MARTINUS H. CARON

    Although there are exceptions, oxidized silver ores containing the higher oxides of manganese are generally refractory to hydrometallurgical methods of treatment. When these ores are of high enough gr

    Jan 1, 1925

  • NIOSH
    RI 2256 Notes On The Oil-Shale Industry With Particular Reference To The Rocky Mountain District ? Introduction

    By M. J. Gavin

    Within the past three years numerous inquiries for information on oil shale have been received by the Bureau of Manes. These inquiries have been increasing to such an extent that it has seemed advisab

    Jan 1, 1921

  • NIOSH
    IC 8266.1 Review and Evaluation of Silver-Production Techniques

    By B. H. Clemmons, C. H. Schack

    Extractive metallurgy techniques currently employed to recover silver from primary ores and secondary scrap were reviewed and evaluated to identify and delineate metallurgical problems whose resolutio

    Mar 1, 1965

  • NIOSH
    IC 7009 Dewatering and Drying of Coal

    By Ellis S. Hertzog, James R. Cudworth

    Tremendous interest has been evidenced in the subject of dewatering and drying ooal for the past 10 years, and yet little effort has been made to summarize the literature, at least so far as this coun

    Apr 1, 1938

  • NIOSH
    RI 3887 Observation on the Use of a Diesel Freight Locomotive through a Railway Tunnel

    By L. H. McGuire, L. B. Berger

    "During the period October 31 to November 4, 1944, tests were conducted by the Bureau of Mines in the Cascade Tunnel of the Great Northern Railway Cc. to determine the effects upon the tunnel atmosphe

    Jun 1, 1946

  • NIOSH
    IC 8445 Impact Of Technology On The Commercial Secondary Aluminum Industry

    By Donald L. Siebert

    This profile study of the commercial secondary aluminum industry examines not only the elements that form the industry but also the technological contributions of each toward industrial growth. Concis

    Jan 1, 1970

  • NIOSH
    Syllabus Of Clay Testing - Introduction

    By T. A. Klinefelter

    ONE OF THE many services rendered by the Federal Bureau of Mines is the identification and general examination of ore and mineral samples. Many of these, coming from almost every State in the Union, a

    Jan 1, 1957

  • NIOSH
    OFR-147-81 Technological Investigation To Develop Design Criteria For The Optimum Size Of Oil And Gas Well Blocks ? Phase III

    By Kenneth Wardell

    Criteria have been fully developed for determining the optimum size of oil and gas well blocks. The criteria lead to the formation of well barrier pillars which are, of themselves, inherently stable a

    Jan 1, 1980

  • NIOSH
    Bulletin 150 Electrodeposition of Gold and Silver from Cyanide Solutions

    By S. B. Christy

    This report on the electrodeposition of gold and silver from cyanide solutions represents work that has occupied my time at intervals during the past 20 years. The investigation has been carried on si

    Jan 1, 1919

  • NIOSH
    The Principles And Practice Of Sampling Metallic Metallurgical Materials, With Special Reference To The Sampling Of Copper Bullion. - Introduction.

    By Edward Keller

    The work covered by this report was undertaken at the request of Dr. J. A. Holmes, late Director of the Bureau of Mines, to whom the writer had been recommended by C. W. Goodale and E. P. Mathewson, o

    Jan 1, 1916

  • NIOSH
    IC 7190 Annual Report Of Research And Technologic Work On Coal, Fiscal Year 1941 ? Foreword

    By A. C. Fieldner

    Much activity is called for in the present period of hightened national effort, and wise direction of such a program must always be conditioned by positive knowledge gained in years of slow and painst

    Jan 1, 1941

  • NIOSH
    RI 3902 Investigation of Lost River Tin Deposit, Seward Peninsula, Alaska

    By H. E. Heide

    "Before the war, the United States was the world’s leading consumer of tin, the industrial applications of which had become widespread. Domestic production was negligible, and requirements were met al

    Jul 1, 1946

  • NIOSH
    The Titaniferous Iron Ores In The United States; Their Composition And Economic Value. ? Introduction

    By Joseph T. Singewald

    The term "titaniferous magnetite" is used to designate those magnetic ores of iron that carry more than 2 or 3 per cent of titanium. Large and easily workable deposits of these ores occur in different

    Jan 1, 1913

  • NIOSH
    IC 7594 The Synthesis Of Hydrocarbons (Report Of The Imperial Fuel Research Institute Of Japan, July 25, 1935) ? Introduction

    By Shigeru Tsutsumi

    The rapid development of transportation facilities in Japan focused the attention of this country on the possibility of converting the existing coal resources (of which there was an abundance) into li

    Jan 1, 1951

  • NIOSH
    IC 8266 Review And Evaluation Of Silver-Production Techniques (5d2c3b2e-2b2b-4ecf-854c-456c5dbcdfba)

    By C. H. Schack

    Extractive metallurgy techniques currently employed to recover silver from primary ores and secondary scrap were reviewed and evaluated to identify and delineate metallurgical problems whose resolutio

    Jan 1, 1965

  • NIOSH
    OFR-164-83 Evaluation Of Bulkheads For Radon Control

    By Clifford H. Summers

    This report describes an experimental program which we conducted on behalf of the U. S. Bureau of Mines, to select from currently available materials two novel systems of construction for air-restrain

    Jan 1, 1982

  • NIOSH
    OFR-9-71 Wire Rope Applications And Practices Associated With Underground Coal Mining In The United States

    By C. H. Larsen

    A 9-month study of the uses of wire rope associated with U. S. underground coal mining is reported. Rope applications are broken down into hoisting and nonhoisting applications where "hoisting" re

    Jan 1, 1971

  • NIOSH
    OFR-20-78 Demonstration Of Fire Suppression Systems On Underground Mining Equipment

    By Ferdinand Roehlich

    An evaluation of the use of manually activated, installed,. dry chemical fire protection systems on underground metal and nonmetal mine vehicles is described. In addition, an assessment of the possibl

    Jan 1, 1977

  • NIOSH
    OFR-120-80 The Effect Of In Situ Retorting On Oil Shale Pillars

    By L. Ozdemir

    An investigation was made to determine the mechanical properties of oil shale at elevated temperatures and confining pressures, the thermal properties at elevated temperatures, and to provide mathemat

    Jan 1, 1981

  • NIOSH
    Introduction (90afc43a-9bbf-49a4-ad96-7149f61d31b5)

    Research 84 highlights significant studies conducted during the past fiscal year at Bureau facilities and offices. Readers who want more information about the projects and studies summarized here can

    Jan 1, 1984