Search Documents

Search Again

Search Again

Refine Search

Publication Date
Clear

Refine Search

Publication Date
Clear
Organization
Organization
  • SME
    The Immobilization Of Free Ionic Gold And Asparaglne-Complexed Ionic Gold By Sporosarcina Ureae: The Importance Of Organo-Gold Complexes In Gold Mobility

    By G. Southam

    Bacterial populations play an active role in mineral weathering in subsurface and near-surface environments e.g., supergene enrichment of Cu at Morenci, AZ. An in vitro bacterial biofilm model was use

    Jan 1, 1999

  • SME
    Immobilization of free ionic gold and L-asparagine-complexed ionic gold by Sporosarcina ureae: The importance of organo-gold complexes in gold mobility

    By W. S. Fyfe, G. Southam, T. J. Beveridge

    Sporosarcina ureae was able to grow in the presence of tip to 10-ppm L-asparagine complexed gold. However, 10 ppm Au3+ was found to be highly toxic to Sporosarcina ureae, killing 109 bacteria/mL withi

    Jan 1, 2000

  • SME
    The Immobilization Of Free Ionic Gold And Asparagine-Complexed Ionic Gold By Sporosarcina Ureae: The Importance Of Organo-Gold Complexes In Gold Mobility

    By W. S. Fyfe, G. Southam, T. J. Beveridge

    Bacterial populations play an active role in mineral weathering in subsurface and near-surface environments e.g., supergene enrichment of Cu at Morenci, AZ. An invitro bacterial biofilm model was use

    Jan 1, 1999

  • SME
    Evaluation Of A New Method For Work Index Estimation Using Single Particle Impact Tests

    By R. P. King, M. K. McCarter, K. S. Free

    Mine plans typically consider the profits and costs associated with extracting and processing minerals into marketable products. Interrelationships between mine and mill costs are often overlooked dur

    Jan 1, 2004

  • SME
    Demonstration Campaign Results on a Cyanide-Free Process for Gold Extraction from a Refractory Pyrite Concentrate (SME Annual Meeting Feb. 19 - 22, 2017, Denver, CO)

    By . A. Drouin, J. -M. Lalancette, D. Lemieux, C. Chouinard

    "A gold bearing pyrite concentrate was treated at the demonstration scale (15 t/d) for the extraction of gold using a cyanide-free process. The pyrite was depressed in the flotation circuit in order t

    Jan 1, 2017

  • SME
    Measurement of Weak and Dissociable (WAD) Cyanide with a Modified Potentiometric Titration (2f96b3c7-cd93-45e1-89c3-eb9c4c7da7e0)

    By I. Ward, E. Milosavljevic, M. Botz

    "The silver nitrate titration method is a rapid and acceptably accurate means of analyzing for cyanide in leach solutions that contain primarily free cyanide. However, in leach solutions containing el

    Jan 1, 2015

  • SME
    Effects of Wellbore Liquids in Propellant-Based Fracturing

    By J. F. Cuderman

    In situ experiments at the Department of Energy's Nevada Test Site (NTS) have extended the technology of propellant-based fracturing to include liquid- filled, uncased boreholes. Previous work ha

    Jan 1, 1986

  • SME
    Effect of Surface Treatment on the Acid-base Properties of Fillers and Pigments

    By Roe-Hoan Yoon, lsmail Yildirim, Jinhong Zhang

    Inorganic fillers and pigments such as kaolin, diatomaceous earth silica, and talc were treated with various surfactants, and the changes in their surface properties monitored. When they were treated

    Jan 1, 2003

  • SME
    Biological Treatment Of Cyanidation Wastewaters ? Introduction

    By Terry I. Mudder

    Metal complexed cyanides in wastewaters form as a result of interactions of free cyanide with metals present in the wastewater and exhibit varying degrees of stability, toxicity, and treatability. Thi

    Jan 1, 1984

  • SME
    Supercritical revolutions of tumbling mills

    By W. Swisterski, G. Romaniszyn, S. A. Lukasiewicz

    The present paper analyzes the motion of a particle of material in a horizontaly rotating tumbling mill. The sliding of the particle under action of dynamic and friction forces and its free flight fa

    Jan 1, 1991

  • SME
    Single Fracture Of Brittle Spheres

    By N. Arbiter

    Fracture under low velocity free-fall and double impact, and under slow compression have been-investigated. The pattern of breakage and the size distribution of resulting fragments for sand-cement and

    Jan 1, 1968

  • SME
    Spigot Design Modification to Alleviate Roping in Hydrocyclones

    By S. S. Pathak, S. Mishra, M. H. Tyeb, A. K. Majumder

    Roping in hydrocyclones is a well-known phenomenon in mining and mineral industries which put serious restrictions on their continuous and maintenance free operation. Roping is mostly observed in asso

    Jan 8, 2022

  • SME
    Improved Mine Fire Diagnostic Techniques

    By C. D. Litton

    This paper describes two new gas diagnostic techniques which have been used successfully to determine: 1) the combustion status of underground mines which have been sealed due to fire (Littol1 Ratio);

    Jan 1, 1989

  • SME
    Studies Of The Interactions Between Talc And Stickies During Paper Recycling

    By J. L. Yordan, J. Kortmeyer, I. Yildirim

    Talc is used to remove stickies from pulp during paper recycling processes. It is well known that the interaction is controlled by the surface chemistry at the talc/water, sticky/water and talc/stick

    Jan 1, 2002

  • SME
    Cyancor On-stream Cyanide Analyzer

    By Stephen Young

    The continuous monitoring of free cyanide levels is an important part of gold recovery operations. Accurate and up to the moment knowledge of the free cyanide concentration can result in substantial c

    Jan 1, 1995

  • SME
    Cyanide Analysis Of Mining Effluents By Specific Ion Electrode

    By Robert M. Mann

    The Ag/S specific ion electrode has been evaluated for analysis of both free and total cyanide. Metal cyanide solutions were prepared from reagent grade compounds and by stoichiometric fixture of the

    Jan 1, 1981

  • SME
    Federal Coal Leasing Policy Competitive And New Entrants

    By Robert Bohman

    I truly free enterprise system requires free and unrestricted competition among a diversity of suppliers, in order to function properly. The natural attrition of the marketplace tends on the one hand

    Jan 1, 1982

  • SME
    An Update On “The Good, The Bad, And The Ugly” Silica--Revisited

    By E. A. Metz

    It has been approximately four years since IARC reclassified crystalline silica as a “Group One” substance. Since that time, crystalline silica has been considered a human carcinogen. Silicosis i

    Jan 1, 2000

  • SME
    Enhancement Of Roller Cutting By Means Of Water Jets

    By Noel C. Joughin, Orrie Fenn, Brian E. Protheroe

    Work has shown that the use of high-pressure water jets enhances the performance of mechanical cutting in very hard rock. To assess the potential of this approach for use in conjunction with free roll

    Jan 1, 1985

  • SME
    Gravity Concentration At The Telfer And New Celebration Gold Mines

    By A. Goulsbra, S. Gregory, P. Gelfil, V. Martins, R. Dunne

    As a general rule for gold treatment the presence of reasonable amounts of 'coarse' free gold will dictate the use of a gravity circuit. The actual particle size of gold that constitutes the por­tion

    Jan 1, 1996