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  • SME
    On-Line Instrument For Coarse Particle Size Distribution Measurements

    By James H. Vignos

    An optical instrument designed for the on-line measurement of the size distribution of coarse particles (3-500 mm) being transported on a conveyor belt is described. Included is a discussion of the me

    Jan 1, 1979

  • SME
    Subsidence Control - Underground Mining

    By George Dials

    Good morning gentlemen. My name is George Dials, and I am [vice] president of the Mining and Reclamation Council of America (MARC). The Council is composed of various companies, individuals, and affil

    Jan 1, 1979

  • SME
    Coal Division - Coal for Electric Generation - Its Problems

    The primary use of coal in the US is for electric generation. The problems associated with the use of this vast amount of coal is the central theme of these sessions. The problems discussed include: p

    Jan 1, 1979

  • SME
    Laser Probe Determinations Of Trace Element Concentrations In Sulfide Minerals From The Magmont Mine, Viburnam Trend, Southeast Missouri

    By D. M. S. Bhatia

    Five sulfide minerals from the Magiwnt mine, southeast Missouri were analyzed for 31 trace elements in over 300 samples by laser microprobe spectrographic analysis of polished sections. The concentrat

    Jan 1, 1979

  • SME
    Modification Of The Floatability Of Coal Pyrites

    By T. D. Wheelock

    The effect of various flotation depressants and surface treatments on the floatability of coal derived pyrites in the presence of XIBC was investigated with a modified Hallimond tube microflotation ce

    Jan 1, 1979

  • SME
    Development Of An Automated Process At The Climax Mill - Introduction

    By Robert R. Dorfler

    We ought not look back unless it is to de- rive from past errors, and for the purpose of profiting by dear bought experience. - George Washington During the mid 1960's, the application of au

    Jan 1, 1979

  • SME
    Does Geostatistics Work? ? Introduction

    By Isobel Clark

    The problem of the estimation of ore reserves is essentially a simple one to describe. Given a set of sample data, at specified locations within a deposit, how can we estimate the value (or quantity)

    Jan 1, 1979

  • SME
    3. Process Optimization

    By A. L. Mular

    Optimization has been defined as the procedure of locating the best of something or the best way of doing something (Mular, 1971). Several texts (Himmelblau, 1972; Ray and Szekeley, 1973; Box and Drap

    Jan 1, 1979

  • SME
    Arizona Salt Deposits ? Introduction

    By H. Wesley Peirce

    Although not generally recognized, Arizona has rock salt deposits unique in the United States. This uniqueness stems from a combination of two factors: (1) relatively youthful geologic age and (2) non

    Jan 1, 1979

  • SME
    4. Pyrometallurgical Process Control

    By Ken J. Richards

    Industries dependent on pyrometallurgical processing generally find themselves facing a common set of problems, namely, serious environmental restrictions, heavy capital requirements for new facilitie

    Jan 1, 1979

  • SME
    Discovery And Development Of De Los Pijiguaos Bauxite Deposit, Venezuala

    By Gregor de Ratmiroff

    Field prospecting for bauxite in Venezuela has had a long but interrupted history having till now oferred but evidence of occurrences. The Venezuelan Government, trough the Corporación Venezolana de

    Jan 1, 1979

  • SME
    Uranium Geophysics, Copper Mountain, Wyoming

    By Larry B. Bramlett

    Regional radiometric, magnetic and geologic data point to Copper Mountain as an area of general uranium favorability. Sub-regional radiometric and magnetic data direct interest to a specific section o

    Jan 1, 1979

  • SME
    The Modelling And Analysis Of Mining Compressed Air Distribution Systems ? Introduction

    By J. A. Ryder

    Compressed air is a relatively inefficient yet very convenient vehicle for transmitting mechanical energy. It is inefficient when compared to, say, hydraulic or electric energy systems since compresso

    Jan 1, 1979

  • SME
    Mineralogical Characteristics Of Asbestos (e04833ed-34a7-4d2e-bd3c-b68d82ba9630)

    By E. Steel

    The asbestifom habit is most commonly developed in certain amphiboles and chrysotile, but other minerals may also crystallize with this unususual habit, The habit may be characterized by 1) a fibril s

    Jan 1, 1979

  • SME
    Characterization Of Subsidence Profiles Over Room-And-Pillar Coal Mines In Illinois ? Introduction

    By Stephen R. Hunt

    This paper summarizes some preliminary results of the Illinois State Geological Surveys current investigation into surface subsidence resulting from coal mining in Illinois. The purpose of the study i

    Jan 1, 1979

  • SME
    Exploratory Analysis Of Morenci Concentrator System Data

    By R. C. Troxell

    Alternative methods of analyzing data acquired by the Morenci copper concentrator process control instrument-computer system are presented. Experimental measures of ore characteristics, for proposed f

    Jan 1, 1979

  • SME
    A Forecasting Methodology For Aluminum Prices

    By Paul H. Earl

    This paper discusses the evolution of a modeling methodology for explaining price behavior in the aluminum industry. Three generations are described, each utilizing as a foundation a microeconomic sta

    Jan 1, 1979

  • SME
    Mathematical Modeling Of In-Situ Uranium Leaching (837e8e43-bb20-481e-a25b-582eefa332d4)

    By Paul M. Bommer

    Abstract. This cater presents the development of and results from a computer model of in-situ uranium leaching. This model uses a streamline-concentration balance approach and is useful with a vide ra

    Jan 1, 1979

  • SME
    Thin Seam Longwall Mining Practices

    By R. B. Dunn

    Whilst coalmining in the United Kingdom has been synonymous with longwall mining practice there have been changes in recent times which have enabled not only an extension in the length of the face to

    Jan 1, 1979

  • SME
    Copper Recovery Via Oxychloride Routes

    By D. C. McLean

    One of the few innovations in hydrometallurgy in recent years has been the utilization of the chemistry of basic iron sulfates called jarosites. These have been used to make iron-zinc separations in t

    Jan 1, 1979