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The Influence of Aluminum on Indium and Tin Behaviour During Secondary Copper Smelting
By Katri Avarmaa
Aluminum and copper are large volume metals in electronic appliances, while tin and indium exist as common minor elements. All of these non-ferrous metals are aimed to be separated and recycled from t
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Research on the Forecast Model of the Boron Removal from Metallurgical Grade Silicon by Slag Refining Based on GA-BP Neural Network
By Shilai Yuan, Huimin Lu, Liyuan Zhao, Zhijiang Gao
"A purification process was developed to removal impurity element boron from metallurgical grade silicon by electromagnetic induction slag melting. Vacuum melting furnace was used to purify boron in b
Jan 1, 2014
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Aqueous Pressure Oxidation of Silver-Bearing Cyanide Refractory Concentrates in Acidic Sulfate and Sulfate-Iodide Media
By G. Van Weert
Refractory gold ores and auriferous concentrates containing silver tend to form refractory silver jarosites during pressure oxidation. Earlier work with pure Ag2S has shown that the addition of iodine
Jan 1, 1994
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Technology For Processing Of Lead-Bearing Materials From Copper Metallurgy At KGHM Polska Miedz S.A.
By Ryszard Prajsnar
During copper production in shaft and flash smelting processes at KGHM Polska Miedz S.A., lead bearing material of sulfide, sulfate, and oxide character is generated in forms such as slime from shaft
Jan 1, 2002
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Recent Operation at Naoshima with a Larger Mitsubishi Furnace Line
By T. Shibaraki
A new larger, more efficient and economical Mitsubishi furnace line at Naoshima was put into operation in May 1991. Naoshima Smelter had produced previously about 230,000 mtpy anode copper with two sm
Jan 1, 1993
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Aging Process of Alloyed ADI
By R. Elliott, H. Bayati
"Effect of time and temperature on microstructure and mechanical properties of an austempered ductile iron, ADI, of composition 3.6%C, 2.6%Si, 0.4%Cu, 0.2%Mn are reported. Xray analysis and. microstru
Jan 1, 2000
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Application of Solvent Extractions and Solvent-Impregnated Support to the . Treatment of Effluents from Electroless Nickel Plating Processes
By Mikiya Tanaka
This paper outlines our attempt to establish a recycle process of nickel in the spent baths and waste rinse water of electroless nickel plating plants using solvent extraction and solvent-impregnated
Jan 1, 2003
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Copper Smelting In The 21st Century
By Nickolas J. Themelis
The role of copper in the economy will not diminish in the 21st century. Following the tenets of industrial ecology, production and use of copper must take into account both human needs and also how t
Jan 1, 1999
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Oxygen-Flame Converting of Nickel Mattes
By V. M. Paretsky
Oxygen-flame converting of a solid ground matte containing heavy non-ferrous metals in a wide range of concentrations is one of the perspective trends meeting the demands of modern non-ferrous metallu
Jan 1, 1993
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Germanium An Aqueous Processing Review
By Roy J. M. van Lier
In industrial aqueous solutions, germanium generally occurs in trace amounts amid high concentrations of other metals, such as zinc, copper and iron. Separation of germanium from these metals as well
Jan 1, 1995
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Biooxidation of Copper Sulfides
By Richard W. Lawrence
Leaching of copper from sulfide minerals using biooxidation offers a potential route for copper recovery. Oxidation of . sulfide sulfur can proceed either; to sulfate or to elemental sulfur depending
Jan 1, 1996
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Industrial Injection
By Theo Lehner
"During my first contact with industrial metallurgy as a summer vacation worker at the Steelplant at Luleå, Sweden, I came during a visit to MEFOS into contact with works of Prof. Worner caried out du
Jan 1, 1996
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Investigation of Carbonic Anhydrase Assisted Carbon Dioxide Sequestration Using Steelmaking Slag
By Simon Lekakh, Von Richards, C. Hank Rawlins, Kent Peaslee
"Batch aqueous leaching and carbonation tests were conducted using industrial steelmaking slags to determine the effect of carbonic anhydrase enzyme as a catalyst. Calcium leaching is a strong functio
Jan 1, 2009
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Kinetics of the Reduction of die Zinc Oxide in Zinc Ferrite with Iron
By J. R. Donald
Electric arc furnace (EAF) dust, which can be considered as a by-product of the steel recycling process, contains significant quantities of recoverable zinc and iron, as well as hazardous elements suc
Jan 1, 1995
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Recovery of Valuable Metals from Lead Flue Dust by a Intergrated Process
By Chao Li, Lim Hongxu, Yuyue Wang, Xie Yang
"A intergrated process of sulfuric acid leaching, sodium chloride leaching, lead chloride crystallization, lead hydroxide synthesis and roasting was carried out for the recovery of lead, cadmium, copp
Jan 1, 2014
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Thermodynamic Modeling of Oxygen Bottom-Blowing Continuous Converting Process
By Songsong Wang
Recently, replacing Pierce-Smith converting process with the oxygen bottom-blowing continuous converting technology has become a new research focus. Based on the principle of Gibbs free energy minimiz
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Technological Advances for Reducing Production Costs of Commodity Metals
By Robert L. Stephens
"It can be argued that one of the most important property of any material is cost, since this property detennines the applications for which a material can be considered. Despite growing demand and pr
Jan 1, 2000
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Purification Of Rare Earths By Solvent Extraction
By Nobuo Takahashi
Effective solvent extraction media have been investigated for purification of rare earths. At first, a quaternary ammonium compound was studied. The counter anions of rare earths and organic dielectr
Jan 1, 1995
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Parameters for Control and Optimization of Bioleaching of Sulfide Minerals (Invited)
By H. Deveci
Bioleaching/biooxidation is essentially a dissolution process with the involvement of acidophilic bacteria acting as the "catalyst" to accelerate the dissolution of metals from sulfide minerals. The c
Jan 1, 2003
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Systematic Modelling of Heap Leach Processes for Optimisation and Design
By Jochen Petersen
Design and operation of heap leach processes are still largely based on,operator experience and rule of thumb. Although considered a low-cost, low-tech route for mineral extraction, the underlying phy
Jan 1, 2002