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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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