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Properties and Constitution of Asbestos
By Tibor Zoltai
Asbestos is a generic term for industrially useful fibers recovered from exploitable deposits of the asbestiform varieties of five silicate minerals: chrysotile, anthophyllite, actinolite-tremolite, c
Jan 1, 1989
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Copper Extraction From Smelter Flue Dust By Lime-Roast/Ammoniacal Heap Leaching (College of Mines and Earth Resources University of Idaho)
By Zhi-biao Yin
Copper smelter flue dusts often cannot be directly recycled to the smelting process and accumulate as hazardous wastes requiring environmentally acceptable disposal. Because of the limited amount of f
Jan 1, 1992
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Thermochemistry of Thiocyanate Systems for Leaching Gold and Silver Ores
By O. Barbosa F.
The thermochemistry of the systems SCN-H2O, Au-SCN-H2O and Ag-SCN-H2O is discussed. Potential-pH diagrams at 25°C are drawn for each system considering several sets of concentrations of the species in
Jan 1, 1989
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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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Control Of Magnetite Formation During Slag-Making In Copper P-S Converter
By Pengfu Tan
Converter slag chemistry control has played an important role in optimizing converter operations. A thermodynamic model of copper P-S converter has been developed to predict the behavior of magnetite
Jan 1, 2005
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Flash Converting of Chalcocite Concentrate at Inco's Port Colborne Pilot Plant
In the new flowsheet for Inco Limited's S02, Abatement Project at the Copper Cliff, Ontario operations, a copper/nickel sulphide flotation concentrate will be flash smelted, then converted to Bes
Jan 1, 1993
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The Mineralogy of Dross Produced During the Slow Cooling of Missouri Lead Bullion
By Liming Wang
One of the steps in the extractive metallurgy of lead is a refining process called drossing. Hot dross is mixture of impurity compounds that form on the surface during the cooling of lead blast furnac
Jan 1, 1995
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Main Parameters On The Performance Of A Desulfurization Of Ferro-Nickel By Slag Reaction
By M. Hochenhofer
Keywords: desulfurization, mathematical model, slag reaction To produce ferroalloys like ferro-nickel for alloying purposes in a quality that meets the requirements of today?s steel industry, refi
Jan 1, 2005
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The Application Of Six Sigma Methodologies To Improve The Quality Of Converter Slag At Atlantic Copper
By Jesús Contreras
Within its programme for continuous improvement and cultural change, Atlantic Copper has installed the Six Sigma methodology as a basic tool for the improvement of management techniques in all its pro
Jan 1, 2005
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Environmentally Correct Jute Reinforced Polyethylene Composites
By Sergio N. Monteiro
Wastes generated by our society and the question on how to dispose them is, nowadays, a relevant matter of concern. The objective of the present work was to characterize the technical properties of co
Jan 1, 2006
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Separation Of Copper And Cobalt From Nickel Sulphate Solution By Oranophosphorus Mixed Extractant
By Chen Song
Keywords: Mixed extractant, Copper, Cobalt, Nickel, Synergistic effect During separation process of copper and cobalt from nickel sulphate solution, the effects of constitutions and compositions o
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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Applications of Doubly Polished Sections to the Study of Ore Deposits
By P. Heald-Wetlaufer
Doubly polished sections (i.e., sections polished on both sides) allow insights into complex paragenetic relationships, the interpretation of which is essential to understanding ore-forming processes.
Jan 1, 1982
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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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Preparation of Cadmium Ingot and Nickel Powder from Spent Cd-Ni Batteries
By Chang-Dong Li
Cadmium ingot and nickel powder were prepared by high-temperature distillation, solvent extraction and liquid phase reducing method with spent Cd-Ni batteries as raw material. The impacts of the tempe
Jan 1, 2009
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Effect of Electrolytic Conditions on the Crystal Orientation of Electrodeposited Zinc
By Norimasa Yamasaki, Masao Kurosaki
"The effects of plating conditions on the crystal orientation of electrodeposited zinc were investigated by varying elecyrolyte flow rate and current density. Precipitation of the Zn (00 • 2) basal pl
Jan 1, 2000
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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
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Oxygen Sprinkle Smelting At The Morenci Smelter
By R. E. Johnson
The No. 3 reverberatory furnace at Phelps Dodge. Corporation's Morenci, Arizona copper smelter first received oxygen from a new oxygen plant during October 1982 and began operation with oxygen-fu
Jan 1, 1983
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Computer Modeling Of A Self-Reducing Agglomerate In A Shaft Furnace
By José Carlos D?Abreu
The Tecnored process is a new ironmaking technology, developed on a unique approach that combined empirical and theoretical knowledge backed by extensive tests carried out in a dedicated pilot-plant
Jan 1, 2006
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The Use of Polymer Concrete in Acid Containment Equipment for Electrometallurgical Plant Practice
By George J. Karcas
"Non-ferrous metals such as copper, nickel, lead, zinc and precious metals are produced via the electrorefining and electrowinning processes. Apart from controlling electro-chemical conditions for the
Jan 1, 1997