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  • TMS
    Extracting Platinum-Group Metals from Stillwater Complex Flotation Concentrate by a Two-Stage Bacterial Oxidation/Chemical Treatment Process

    By D. L. Yopps

    Platinum-group metal (PGM) flotation .. concentrate from the Stillwater Complex, MT, was subjected to biooxidation using Thiobacillus ferrooxidans in an effort to break down the sulfide minerals and l

    Jan 1, 1991

  • TMS
    Solvent Extraction Equilibria Of Tervalent Lanthanides: A Systematic Investigation Of Selectivity Of Chelate Extraction

    By Henry Freiser

    For the last several years, a systematic investigation of the equilibrium extraction behavior of selective tervalent lanthanides with representative chelating extractions of a variety of chelating age

    Jan 1, 1989

  • TMS
    Gold Leaching by Sodium Chloride and Calcium Hypochlorite Solutions

    By Carvalho A. Felipe de

    The search for environmentally friendly and cost-effective methods for gold extraction has been undertaken in order to provide alternatives to the use of cyanide leaching in the gold industry. Among s

  • TMS
    A Review on Application of Crown Ethers in Separation of Rare Earths and Precious Metals

    By V. I. Lakshmanan

    Crown ethers are gaining importance in separation technology specifically for rare earth elements (REE, La to Lu plus Y) and precious metals (Au, Ag, Pt, Pd, Rh and Ir) due to their specific binding a

  • TMS
    Recycling Of Valuable Metals from Poly Cracker Ash of Printed Circuit Boards (PCBS) By Physical Beneficiation and Hydrometallurgical Treatment

    By Anjan Kumari, B. K. Soni, Manis Kumar Jha, A. Vidyadhar, Vinod Kumar

    "In the present paper, recovery of valuable metals from the poly-cracked ash obtained by pyrolysis of discarded PCBs has been studied following physical beneficiation and a hydrometallurgical process

    Jan 1, 2014

  • TMS
    Environmental Stability of Arsenic Bearing Hydrous Iron Oxide Compounds

    By M. T. Ernett

    Significant amounts of arsenic are often present in effluents arising from the mining of sulfide ores for the extraction of metals such as copper, gold, lead and zinc. The arsenic is usually removed f

    Jan 1, 1994

  • TMS
    The Evolution of the Greek Ferronickel Production Process

    By Emmanuel N. Zevgolis

    After the Krupp-Renn process was shown to be unsuitable for treatment of the Greek nickeliferous laterites, the LM process was developed. It involved roasting reduction up to metallic iron in a Rotary

    Jan 1, 2004

  • TMS
    Effects Of Accelerated Thermal Aging On Polypropylene Modified By Irradiation Process

    By Duclerc Fernandes Parra, Luis Filipe Carvalho Pedroso de Lima, Washington Luiz Oliani, Danilo Marin Fermino, Ademar Benevolo Lugao

    The modified polypropylene was obtained from isotactic polypropylene (iPP) in spheres by irradiation with gamma rays in the presence of acetylene. A new morphology with distinct rheology is obtained b

    Jan 1, 2015

  • TMS
    Scandium Recovery From A Tantalum Waste Residue: A Status Report

    By D. D. Harbuck

    The U.S. Bureau of Mines recently identified a significant new source of scandium in an Oklahoma tantalum waste residue (approximately 0.24 pct Sc). Because scandium is a strategic and critical metal

    Jan 1, 1992

  • TMS
    Application of Mathematical Heat Flow and Stress Models of Steel Ingot Casting to Investigate Panel Crack Formation

    By J. K. Brimacombe, I. V. Samarasekera, B. G. Thomas

    "Mathematical models have been developed for the processing of static cast steel ingots and are app1ied to investigate the mechanisms for the formation of panel cracks. Panel cracking is an intermitte

    Jan 1, 1986

  • TMS
    Inclusion Characteristics in Stainless Steel Ingots

    By Greg Dowling, Jun Ge, George Shannon, Shufeng Yang, Yongfeng Chen, Lifeng Zhang

    "Inclusions in 316L stainless steel ingots poured using two different upgate designs – a traditional upgate and a swirl upgate - were investigated using SEM and ASPEX automated inclusion analysis. The

    Jan 1, 2012

  • TMS
    Improved Short Coil Correction Factor for Induction Heating of Billets

    By Ragnhild E. Aune, Mark William Kennedy, Shahid Akhtar, Jon Arne Bakken

    "To determine the heating rate of billets using ‘short coils’, an appropriate correction factor must be applied to the theoretical relationship. In 1945, Vaughan and Williamson published a semi-empir

    Jan 1, 2012

  • TMS
    Physical Modelling of the Viscosities of Two-Phase Mixtures

    By Du Sichen, S. Seetharaman, Wei Liu

    "The viscosities of two-phase mixtures are of great importance in the modelling of the fluid flow in metallurgical processes. For example, in steel making and refining, the intimate mixing of metal dr

    Jan 1, 2000

  • TMS
    Preparation and Properties of CuIns2 Thin Films by Electrodeposition and Sulfurization

    By Mim Li, Huimin Lu, Lisha Yang

    "CuInS2 thin films solar cells have drawn much attention for their low-cost, stability and high conversion efficiency. The electrodeposition of Cu-In precursor films, as the first step in making CuinS

    Jan 1, 2011

  • TMS
    Mineralogical and Image Analysis Study of Artificially Weathered Tailings from the Midwest Uranium Ore in Saskatchewan

    By William Petruk

    A mineralogical and image analysis study was conducted on samples of U tailings from pilot-plant runs on Midwest ore in Northern Saskatchewan. The tailings had been subjected to simulated weathering f

    Jan 1, 1989

  • TMS
    The Outokumpu Method for Lead Recovery in Electric Furnace

    By Jukka S. Sulanto

    Outokumpu has applied its well -known copper Fl ash Smelling Process also for smelting su1phide lead . concentrates. The lead in the Flash Smelting Furnace slag is recovered by reducing the oxygen pot

    Jan 1, 1990

  • TMS
    Study on Improving the Strength of Copper Concentrate Pellets by Adding Binders

    By Guohua Bai, Lin Zhang, Shan He, Xuling Chen, Min Gan, Xiaohui Fan, Yanbin Tang

    "For reducing the dust content in flue gas during copper smelting in the Ausmelt, technologies and mechanism of strengthening the pelletizing of copper concentrate were studied. The results show that

    Jan 1, 2013

  • TMS
    Recent Improvements in Waelz Operation for Zinc Leach Residue

    By M. Sakamoto, S. Karaswa, Y. Yoneoka, Y. Ohmizo

    "The Annaka Refinery has been processing leach residue by Waelz process for 17 years. Recently, the quantity of the leach residue has increased due to a decline in the quality ~f zinc concentrate. Mea

    Jan 1, 2000

  • TMS
    A Study Of The Spouted-Bed Electrowinning Of Copper

    By V. Jiricny

    The novel spouted-bed electrode (SBE) is a cathode system where copper is deposited at a high current density in a moving bed of copper particles. Preliminary results on the deposition of copper from

    Jan 1, 1999

  • TMS
    Kinetics Of Vanadium Extraction From Hot Metal By Basic Slag

    By Zhen Zhang, Jiang Diao, Xuan Liu, Tao Zhang, Bing Xie, Hong-Yi Li

    Extracting vanadium from vanadium containing hot metal by LD process has been proven an effective solution for the utilization of vanadium-titanium magnetite ore, but the systematic analyses of vanadi

    Jan 1, 2015