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Metallurgical recycling of electronic scrap
By H. Antrekowitsch
Nowadays, the pyrometallurgical treatment in copper smelters is the common process for the recycling of metals from the electronic scrap. Furthermore the European Directive on the Waste from Electrica
Jan 1, 2006
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Hydrothermal Mineralization Treatment of Hazardous Oxoanions in Wastewater for Resource Recovery
By Ryo Sasai, Takeshi Itakura, Haruki Imaizumi, Hideaki Itoh
"Emission of industrial wastewater containing harmful oxoanions is one of the serious problems on account of its toxicity and the environmental pollution, especially caused by boric, phosphinic, arsen
Jan 1, 2008
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Process For Converting SO2 To Sulfur Without Generating Pollutants Through Reactions Involving BaS And BaSO4
By Hong Yong Sohn
Keywords: Barium sulfate, Barium sulfide, Environment, Kinetics, Pollutants, Sulfur dioxide conversion, Thermodynamics Nonferrous smelters and coal gasification processes generate sulfur dioxide st
Jan 1, 2005
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Progress In Converting And Casting
By Theo Lehner
Turning matte into anodes continues to be an area to watch: for visitors to see pyrometallurgy in action; for metallurgists to keep up with modern smelting furnaces and ever increasing production rate
Jan 1, 2005
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Static And Dynamic Synergistic Effects For Ni(II) Extraction And The Application To Waste Solution Containing Ni(II)
By Junji Shibata
Keywords: Synergistic effect, Solvent extraction, Nickel ion, extractant mixture Waste solution from the Ni non-electric plating process contains 4.0 kg/m3 Ni (II), 0.1 kg/m3 Fe (III), 0.01 kg/m3 Z
Jan 1, 2005
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Minor Element Control By Vacuum Calcination And Recycling Of Copper Smelter Dust
By Jin Qiu
Experiments were performed to determine the extent of minor element elimination that occurred when mixtures of copper smelter dust and copper concentrate, were calcined under vacuum. Almost complete
Jan 1, 2005
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Impact of Recycling on Materials Availability: A Case Study of Platinum
By Elisa Alonso
Recycling is generally a more sustainable alternative to landfilling. Its financial costs however, do not always justify its practice, especially in the short term. As a result, even for precious meta
Jan 1, 2009
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Copper Concentrate Smelting In Peirce-Smith Converters At Onahama Smelter
By Toshiyuki Kawai
Copper concentrate smelting directly in P-S converters was started at Onahama Smelter in 1983. Thereafter, the tonnage of concentrate smelted through the P-S converters increased, such that by 2002, i
Jan 1, 2005
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Post-consumption Decoloration Oil Application as Biofuel Using Brazilian clay
By Elaine Araújo
Since the ancient times, clays were used as decolorant material for various types of oils. These clays were called ?decolorant clay?. They have the property to decolor dye materials present in mineral
Jan 1, 2009
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Production Of Rare Earth Ferrosilicide Alloy
By Yavuz Ali Topkaya
Rare earth ferrosilicide is a versatile alloy mainly used to control the detrimental effects of sulfur in steel and to modify graphite structures in cast iron. The aim of this study was to determin
Jan 1, 2006
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Effect of EAF Slag Carryover on Slag-metal Equilibrium Calculations for Ladle Degassing Process
By H. Doostmohammadi
During the tapping of liquid steel from Electric Arc Furnace (EAF), some slag is carried over into the ladle. High levels of FeO and MnO in slag carryover increase the oxygen activity in steel melt le
Jan 1, 2009
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Design Of Supersonic Nozzles For Ultra-Rapid Quenching Of Metallic Vapours
By M. N. H. Khan
CSIRO has been experimenting with supersonic flows as a method of rapidly quenching metallic vapours. Cooling rates above 106 °C/s have been achieved. The supersonic flow conditions are achieved by ad
Jan 1, 2006
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Reduction Kinetics Of Dusts And Pellets From Nickeliferous Laterite Rotary Kiln Treatment
By Emmanuel N. Zevgolis Ismene-Polyxeni Kostika
Keywords: reduction, kinetics, laterites, rotary kiln, dust In this work, the reduction kinetics of dust from nickeliferous Greek laterites is investigated. The dust is a by-product from laterite t
Jan 1, 2005
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Quantitative Characterization Of Phases Present In Aluminum Drosses Through X-Ray Diffraction
By Adriana Gómez
White dross is a result of the aluminum oxidation during its primary production and is mainly composed of metallic aluminum, Al2O3, with minor amounts of AlN and some other oxides. Because of the grea
Jan 1, 2005
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Lattice Parameter Determinations Of KNO3-NH4NO3 Solid Solutions By X-Ray Diffraction Method
By Wen-Ming Chien
Keywords: AN-KN Phase Transition, Lattice Parameters of AN-KN, X-ray Diffraction The lattice parameters of the low and high temperature phase of KNO3-rich (in NH4NO3) solid solutions have been dete
Jan 1, 2005
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Treatment of Radioactive Waste Solution Containing Ni, Co and Cs Obtained from the Dissolution of Purification Ionic Exchange Resins of a Nuclear Reactor Primary Cooling System and its Later Immobilization in a Ferritic Matrix
By María Eugenia Castro, Silvia Galasso, Jorge Duca, Claudia Osuna, Ernesto Esparza
"We present a procedure for treatment of non-active solutions equivalent to the solutions obtained from dissolution of ionic exchange resins used in purification of a nuclear reactor primary cooling s
Jan 1, 2008
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Plutonium Pyrochemistry Spent Salts Treatment By Oxidation And Distillation
By Christophe Thiébaut
Keywords: Pyrochemistry, Salts Treatment, Distillation The pyrochemical purification of metal generates spent salts. When this metal is an actinide such as plutonium, the slags cannot be discarded
Jan 1, 2005
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CONSCAN, A Laser Measurement System for Furnaces which are Operating on High Temperatures
By Oliver Zach
To know as much as possible about the condition of the refractory material (lining thickness, slag layer, build ups, ...) in an high temperature furnace is very important due to the safety and economi
Jan 1, 2006
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Controlling The Processing Parameters Affecting The Refractory Requirements For Peirce-Smith Converters And Anode Refining Vessels
By A. J. Rigby
Refractory linings in converters or anode furnaces used to over-oxidize the blister copper will suffer rapid deterioration, due to prolonged contact with copper oxide-rich slag. Nitrogen stirring wit
Jan 1, 2005
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The Model Of Structure Refinement In Metals At Large Deformations And Factors Effecting Grain Sizes
By F. Z. Utyashev
The present work considers the essence of fragmentation: on the level of a simple model as a material response to the curvature accumulated by it at large deformations. It is on this basis that the co
Jan 1, 2006