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  • TMS
    The Potential Role of Anion Exchange Resins in the Gold Industry

    Although anion exchange resins are widely used for gold recovery in Russia and the former CIS, accounting for almost 50 percent of gold recovery in that part of the world, the technology has not been

    Jan 1, 1998

  • TMS
    Technology Development For Making Harmless The Incinerator Fly Ash And Recycling It As Construction Aggregate By Roasting

    By Mototsugu Matsuno

    A new process has been developed to treat fly ash generated from municipal incinerators, which contains not only toxic metals such as lead and cadmium, but also dioxins. The process includes the follo

    Jan 1, 2003

  • TMS
    Future Technological Developments for Aluminium Smelting

    By Barry Welch, Kai Grjotheim

    "The capital intensive nature of the present process for aluminium smelting, the low productivity per unit reactor, and pressure to reduce the electdcal energy demand have motivated the search for an

    Jan 1, 1988

  • TMS
    Scrap Combination For Recycling Of Valuable Metals: Direct Extraction And Recovery Of Neodymium Metal From Magnet Scraps

    By Torn H. Okabe

    A fundamental study was conducted with the purpose of establishing an environmentally sound recovery process for recycling of valuable metals, by combining scraps containing such metals. As an example

    Jan 1, 2003

  • TMS
    Scrap Combination For Recycling Of Valuable Metals: Direct Extraction And Recovery Of Neodymium Metal From Magnet Scraps (7c93947f-f8ef-4b71-91bc-1751c0448066)

    By Torn H. Okabe

    A fundamental study was conducted with the purpose of establishing an environmentally sound recovery process for recycling of valuable metals, by combining scraps containing such metals. As an example

    Jan 1, 2003

  • TMS
    A Historical Overview of the Cerro Matoso Operation 1980 to 2003

    By J. R. Kiji

    The Cerro Matoso S.A. mine and smelter, in the Cordoba lowlands of northwestern Colombia, consist of a dedicated laterite nickel mine, ore blending, drying and an RKEF process to produce high-quality

    Jan 1, 2004

  • TMS
    Mathematical Modelling of the Smelting Reduction of Iron: The Effect of Properties of Raw Materials and Blast Injection

    By Vladimir Panjkovic, Ostrovski. Oieg, Campbell Cripps Clark, John Truelove

    "Effects of properties of raw materials and blast on the performance of an iron bath reactor have been examined by a mathematical model. The model consists of three modules: 1) chemical reactions in t

    Jan 1, 1996

  • TMS
    Preparation of High Purity Silver Thin Films by Laser MOCVD Using Liquid Source Delivery System

    By Katsumi Ogi, Hiroto Uchida, Masamitsu Sato, Atsushi Itsuki

    "(BTMSE)Ag(hfac) (BTMSE = trans-bis(trimethylsilyl)ethene) was chosen as a suitable precursor for the XeCl laser (308nm) MOCVD of Ag. Iso-propanol solution of (BTMSE)Ag(hfac) was used as a liquid sour

    Jan 1, 1998

  • TMS
    An Overview Of The Metallurgy Of Nickel-Copper Matte Converting (Keynote)

    By A. E. M. Warner

    In co Limited has long and extensive experience in converting nickel-copper primary smelting mattes over a broad range of nickel/copper weight ratios and combined nickel-copper-cobalt contents. At the

    Jan 1, 2003

  • TMS
    Coal-Based Ironmaking via Melt Circulation

    "The theoretical basis of ideal smelting reduction using coal as reductant in a process employing closed loop forced-circulation of hot metal is outlined. In the proposed process, an extensive area of

    Jan 1, 1988

  • TMS
    Idaho Rare Earth Resources And Extraction

    By R. W. Bartlett

    The extensive central Idaho black sand placer deposits are a potential source of rare earth elements, particularly the heavy rare earth elements that are not prevalent in commercial bastnasite deposit

    Jan 1, 1992

  • TMS
    Optimal Filtering Applied to the Vacuum Arc Remelting Process

    By Rodney L. Williamson

    Optimal estimation theory has been applied to the problem of estimating process variables during vacuum arc remelting (V AR), a process widely used in the specialty metals industry to cast large ingot

    Jan 1, 2001

  • TMS
    Developing Process Design Criteria for Zarafshan/Newmont Joint Venture Muruntau Heap Leach Operation

    By Sevket Acar, Tim Acton

    "Zarafshan/Newmont is a 50/25/25 joint venture between Newmont Gold and the State Committee for Geology and Mineral Resources, and Navoi Mining and Metallurgical Combinat, two entities of the Republic

    Jan 1, 1997

  • TMS
    Cerro Verde Hydrometallurgical Plant Design Features and Operation

    By O. Durand

    The Cerro Verde Hydrometallurgical Plant, located at Arequipa in the southern part of Peru, started its operation in 1977 with a design capacity of 33,000 MT/year of copper cathodes. The plant has tr

    Jan 1, 1987

  • TMS
    Problems With Elimination of the Main Impurities in the KGHM Polska Miedz S.A. Copper Concentrates from the Copper Production Cycle (Shaft Furnace Process, Direct Blister Smelting in a Flash Furnace)

    By Józef Czemecki

    Polish copper concentrates are characterized by high levels of impurities, particularly Pb and As. Two technologies are being used for copper concentrate smelting at KGHM Polska Meidz S.A., namely the

    Jan 1, 1998

  • TMS
    Lime-Enhanced Reduction of Metal Sulfides

    By P. M. Prasad

    The last two decades have witnessed the emergence of numerous hydrometallurgical and direct processing techniques for the extraction of some metals from pocketed/lean/complex sulfide ore deposits. A n

    Jan 1, 1983

  • TMS
    Magnesium Technologies -Present and Future

    By Robert E. (Bob) Brown

    Magnesium was discovered by Davy in 1808. The production processes as they exist are not economically competitive with aluminum The electrolytic magnesium process is divided into two steps; one to mak

    Jan 1, 2001

  • TMS
    Before Peirce and Smith – The Manhes Converter: Its Development and Some Reflections for Today

    By Larry M. Southwick, Phillip J. Mackey, A. E. (Bert) Wraith, Albert Pelletier

    In 1881, the first commercial pneumatic Bessemer-type converter treating copper matte was successfully introduced by Pierre Manhes at the Eguilles copper plant near Vedène in France. This development

    Jan 1, 2009

  • TMS
    Experimental Methods in Gas Injection into Liquid Systems

    By G. Laird, N. B. Gray, N. Lawson

    "Photographic, video, laser, hot film and conductivity methods are used in the experimental study of gas-liquid flows. A discussion of their capabilities and limitations are given in this paper illust

    Jan 1, 1996

  • TMS
    Utilization of an Equilibrium Calculational Program for Teaching Hydrometallurgy

    Equilibrium calculational software programs can be effectively utilized to illustrate the importance of activity or concentration, solubility, temperature, solution pH, solution potential, and ligand

    Jan 1, 2002