Search Documents

Search Again

Search Again

Refine Search

Publication Date
Clear

Refine Search

Publication Date
Clear
Organization
Organization
  • SME
    Effects Of Recycling Milling Water In The New Lead Belt Of Southeast Missouri ? Introduction

    By Franklin H. Sharp

    During the last few years the New Lead Belt of South- eastern Missouri has become the main source of lead in the United States. It also produces significant amounts of zinc, copper, and silver. The mi

    Jan 1, 1973

  • SME
    Thermal Neutron Capture Prompt Gamma Emission Spectra Of Coals

    By Caroline L. Herzenberg

    Recently, neutron-induced gamma spectrometry has been introduced and gained provisional acceptance as a method for continuous automated analysis of coal. Instrumentation based on this technique has be

    Jan 1, 1984

  • SME
    Economics Of Diatomite

    By W. E. Benton

    Diatomite or diatomaceous earth is a siliceous sedimentary rock principally made up of the skeletal remains of the diatom, a microscopic, single-cell aquatic plant related to algae. The unique structu

    Jan 1, 1983

  • SME
    Practical Aspects Of Cyanidation Of Carbonaceous Ore

    By K. A. Brunk

    This paper describes Newmont's research, operations, history and experience with pre-treatment of preg robbing carbonaceous ores. The chemistry, physics and kinetics of chlorine treatment are des

    Jan 1, 1987

  • SME
    Environmental Impacts Of Underground Coal Gasification ? Introduction

    By Willard A. Murray

    Investigations of underground coal gasification (UCG) have been actively pursued by the U.S. Department of Energy since the early 1970s; the Lawrence Livermore National Laboratory (LLNL) conducted its

    Jan 1, 1982

  • SME
    Oxidation/Reduction Effects In Depression Of Sulfide Minerals

    By S. Chander

    A review of the published literature on the mechanism of depression of sulfide minerals shows that a unified theory is not yet available. The various mechanisms that have been postulated include compe

    Jan 1, 1984

  • SME
    Blasthole Stoping At The Lac Shortt Mine, Corporation Falconbridge Copper ? Mine History

    By Louis P. Gignac

    The Lac Shortt gold deposit is located in Northwestern Quebec, at some 115 km west of the Opemiska Division and 380 km northeast of the Lac Dufault Division, as shown on Figure 1. Falconbridge's

    Jan 1, 1985

  • SME
    Justification For Possible Use Of Indigenous Kimberlite Minerals In Evaluation Of Diamond Potential

    By Jill Dill Pasteris

    Several mineralogical prospecting techniques are used in diamond exploration. Most are concerned with identifying indicator minerals such as garnet and ilmenite, which are derived from mantle xenolith

    Jan 1, 1983

  • SME
    Metal Recovery From Acid-Leach Processing Of Arsenic-Containing Copper Wastes

    By D. K. Steele

    The U.S. Bureau of Mines has investigated the recovery of metals from copper industry wastes by sulfuric acid leaching in a semi-continuous, bench-scale system to solubilize arsenic, copper, and molyb

    Jan 1, 1991

  • SME
    Induced Fluorescent Sorting To Minimize Impurities In Limestone And Other Minerals

    By R. D. Stewart

    Abstract. Induced fluorescent sorting is a means of beneficiating an ore by selective labeling with a reagent combination which fluoresces when activated by ultraviolet light The reagent combination

    Jan 1, 1980

  • SME
    The Validity Of Computer-Aided Mine Ventilation System Design

    By A. K. Sinha

    Modern mine ventilation systems have grown rapidly in recent years both in tern of its complexities as well as its value for human health and safety. Although computer models are now available to help

    Jan 1, 1985

  • SME
    A Rapid Computational Procedure For Unsteady-State Ball Mill Circuit Simulation

    By L. G. Austin

    A simple finite difference algorithm has been used to compute a simulation model for unsteady-state ball milling. The model considers the mill to act as if it were three fully-mixed reactors in series

    Jan 1, 1984

  • SME
    Economic Evaluation Of Available Processes For Treating Oxide Copper Ores ? Introduction

    By Roshan B. Bhappu

    Stimulated by current $0.80 to $1.20 per pound price tag of copper, considerable interest and activity have been generated in the copper mining camps throughout the world, and especially in the Southw

    Jan 1, 1974

  • SME
    Exploration Geochemistry

    By L. G. Closs

    Gold continued to be the primary focus of minerals exploration worldwide during 1995. Other targets, though, included primary diamonds and base metals, especially copper deposits amenable to solvent-

    Jan 1, 1996

  • SME
    New Findings On The Reduction Behavior Of Sinter (1b90a217-fbf3-4f2c-8576-810660ec6774)

    By Klaus Grebe

    Recent investigations by Mannesmann Research have shown that disintegration of sinter with widely varying quality levels is subject to a much more complex set of influences than was previously assumed

    Jan 1, 1981

  • SME
    Selective Flocculation And Flotation Of Some Fine Grained Michigan Iron Ores

    By D. W. Frommer

    In continuing its long range studies of methods of treating low-grade iron ores, the Bureau of Mines has developed a new selective flocculation, desliming, and flotation procedure that enables effecti

    Jan 1, 1964

  • SME
    Evaluation of Reverse Circulation & Core Drilling at the Cove Deposit

    By Bruce A. Kuyper

    Routine core drilling at the Cove deposit failed to confirm gold-silver grades and length of intercepts observed in reverse circulation drilling. A drilling program was designed to ascertain whether t

    Jan 1, 1991

  • SME
    Shaft Design Criteria ? Introduction

    By Kot F. Unrug

    When reading different studies discussing trends in coal mining, it appears that a substantial expansion of output by the year 2000 is predicted, even in the most pessimistic forecasts. Depletion of s

    Jan 1, 1984

  • SME
    Relations In The Petrography Of Lignite To Its Preparation

    By Harold L. Lovell

    The extensive heterogeneity of coal is a fact long recognized by scientists and engineers. However, until recent years the practical implications of such heterogeneity have more often been realized fr

    Jan 1, 1968

  • SME
    Marketing Acid Rain - An Industrial Mineral Commodity

    By G. H. K. Pearse

    Long range transport of pollutants, particularly of sulphur dioxide and the associated acidic precipitation, has received much attention in the press and in international discussion during the last fe

    Jan 1, 1981