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  • AIME
    Recent Advances In High Gradient Magnetic Separation

    By John A. Oberteuffer, Ionel Wechsler

    High gradient magnetic separation, first introduced in 1968 as a means for the removal of very fine magnetic contaminants from clay, is no longer a new technology. Applications to a number of solid-so

    Jan 1, 1980

  • AIME
    Recent Advances in Knowledge of the Colloidal Properties of Clay Suspensions and Gels

    By Charles Reed

    WITH the increasing importance of clay in drilling operations which demand more precise and exacting control over its behavior, there has come the realization that most of our present methods of contr

    Jan 1, 1938

  • AIME
    Recent Advances in Mine Safety Practices and Equipment

    By J. T. Ryan

    SAFETY practice or the elimination of accidents in our coal mines is specifically a problem of management. It cannot be delegated to any governmental agency except that the various coal-producing stat

    Jan 1, 1937

  • AIME
    Recent Advances in the Chemistry of Sodium Silicates: Implications for Ore Beneficiation (3a816349-7f8a-48e7-9344-996e30e9efac)

    By J. S. Falcone

    Soluble sodium silicate materials have well known applications in flotation for desliming, selective depression and corrosion control. Recent advances in the understanding of the complex polymeric nat

    Jan 1, 1983

  • AIME
    Recent Advances In The Chemistry Of The Cyanogen Compounds

    By J. E. Clennell

    IT is a common observation that the improvements introduced in practice since the first announcement of the cyanide process have been almost entirely mechanical. Although a good deal of study and rese

    Jan 10, 1915

  • AIME
  • AIME
    Recent Changes In California Voluntary Oil-Curtailment Methods

    By Joseph Jensen

    FROM Aug. 31, 1937, until Apr. 30, 1939, there were 40,872,610 bbl. of oil run to storage in California; from Apr. 30, 1939, to Aug. 31 of the same year 5,512,912 bbl. were withdrawn from storage. But

    Jan 1, 1940

  • AIME
    Recent Coal Geology Research

    By Aureal T. Cross

    THIS paper is a review of the published literature on research in coal geology, principally exclusive of resource studies, which appeared or became available during 1950 and the latter part of 1949. T

    Jan 1, 1952

  • AIME
    Recent Deep Tests In The Appalachian Field

    By R. E. Somers

    THE Appalachian field is notable for four tests drilled in recent years to depths of over 7000 ft. and for one commercial gas well at 6822 ft. The latter is the Ligonier well and produces from the Ori

    Jan 3, 1924

  • AIME
    Recent Development In On-Line Composition Analysis Of Process Streams

    By Harrison R. Cooper

    Measurement of process material composition with on-line instrumentation has commanded attention of metallurgical plant management as a logical extension of the sampling operation, making possible imm

    Jan 1, 1984

  • AIME
    Recent Development of the Hardinge-Hadsel Mill

    By Harlowe Hardinqe

    ABOUT three years ago a distinctive new type of crushing and grinding equipment, known as the Hadsel mill, was announced. A description appeared in the November, 1932, issue of this magazine. Any mach

    Jan 1, 1935

  • AIME
    Recent Developments and Applications of Bulk Mining Methods in the Peoples Republic of China

    By Jun-Yan Chen, Stefan H. Boshkov

    Metal mining in the People's Republic of China has shown great growth during the last three decades. Over 150 new iron ore mines and nonferrous base metal mines have been opened since 1949, altho

    Jan 1, 1981

  • AIME
    Recent Developments And Applications Of The Microseismic Method In Deep Mines

    By Fred Leighton, Wilson Blake

    The microseismic method of detecting instability and high-stress zones in underground mines was developed by the U.S. Bureau of Mines (USBM) in the early 1940's.l,2 For about 25 years this method

    Jan 1, 1970

  • AIME
    Recent Developments in Classification

    By A. M. Gaudin

    THE purpose of ore dressing is to separate the rough ore into one or several valuable concentrates and a discarded tailing. The first step is to crush the ore so that the resulting particles may be in

    Jan 2, 1927

  • AIME
    Recent Developments in Classification (a620fb0c-5ef5-4473-adde-8ad0245017f8)

    FOLLOWING the presentation at the annual meet-ing of the paper "Recent Developments in Classi-fication," by A. M. Gaudin and W. L. Remick, the discussion presented below took place: H. N. Spicer : I

    Jan 4, 1927

  • AIME
    Recent Developments In Coal Briquetting

    By Charles Malcolmson

    IN the United States, improvements in methods of combustion have made possible the use of the smaller sizes of anthracite. This coal is now being reclaimed from the culm banks accumulated by the miner

    Jan 2, 1915

  • AIME
    Recent Developments in Coal Briquetting (ca31b0d7-9ef1-4604-b2cc-39deed4653cd)

    Discussion of the paper of CHARLES T. MALCOLMSON, presented at the New York meeting, February, 1915, and printed in Bulletin No. 98, February, 1915, pp. 271 to 289. E. W. PARKER, Washington, D. C.-Th

    Jan 5, 1915

  • AIME
    Recent Developments in Heavy-Density Separation

    By John V. Beall

    HEAVY-DENSITY separation processes, a commercial application of the sink-float test used in mineralogical laboratories for the separation of mineral particles by their difference in specific gravity,

    Jan 1, 1948

  • AIME
    Recent Developments In Lead-Smelting Practice

    By O. P. Chisholm

    The most noticeable change in lead smelting over the past few years has been the increase in the smelting rate of lead blast furnaces. For several years a great deal of attention has been paid to the

    Jan 1, 1941

  • AIME
    Recent Developments In Magnetic Separation Equipment

    By R. L. Watts

    Successful mining of taconite has required the solution of a series of difficult problems, including more efficient magnetic separation. Progress in this field is evidenced by reductions in operating

    Jan 12, 1967