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Characterization Of Recyclable Components In Fly Ash To Produce Marketable Products
By R. S. Krarner
Fly ash, a by-product of coal burning power plants, poses a major problem for the utility industry since most fly ash must be landfilled. These quantities may represent as much as 20% of the total mat
Jan 1, 1994
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An Application Of Equibibrium Calculations To The Copper Smelting Operation
By R. Shimpo
Equilibrium calculations by a computer may sometimes fail in giving solutions when the system includes a large number of components and more than three phases, and especially when no definite informat
Jan 1, 1983
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Assessment of Lithium Pegmatite Ore Bodies to Determine Their Amenability to Processing for the Extraction of Lithium
By G. Mark Aylmore
Various processes have been developed using a combination of elevated temperature and chemical treatment processing to recover Li from silicate minerals. To facilitate further process development, a c
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Solvent Extraction of Ferric Iron from Zinc Sulfate Solutions with DEHPA- Investigation of Nitric Acid as Stripping Agent
By Gus Van Weert
Solvent extraction of iron from zinc refinery liquors has been investigated before, mainly on the MEHPA / HC1 stripping combination. Leakage of chloride into the zinc electrolyte and the costs of hand
Jan 1, 1998
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The Coppermaking QS Continuous Oxygen Converter Technology, Design and Offspring
By Paul E. Queneau
The QS (Queneau-Schuhmann) copper converter is a gently sloped, stepped, horizontal kiln-type tilting reactor in which desired bath oxygen activity, compositional and temperature gradients are created
Jan 1, 1993
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Distribution of Minor Elements Between Alloy- Saturated Nickel Matte and Slag
By R. S. Celmer
The distributions of cobalt, molybdenum, copper, and selenium between nickel matte and silica-saturated iron silicate slag have been determined in the region of the metallic saturation boundary, at 15
Jan 1, 1988
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Economics and Production of Primary Titanium by Electrolytic Winning
By Marco V. Ginatta
Current world production, 60'000 ton/y, is exceedingly too small for titanium's extraordinary combination of favorable properties; it should be 1,000,000 ton/y (7% of stainless-steel). Pric
Jan 1, 2001
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Electrochemical Aspects of the Dissolution of Gold in Cyanide Electrolytes Containing Lead
By Jennifer Mager, G. P. Martins, Dean Mussatti
"The role of lead, at low concentrations in high pH cyanide-electrolytes, on the dissolution behavior of gold, has been a topic of scientific and industrial concern for well over a century. The recent
Jan 1, 1997
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The Behaviour of Arsenic, Antimony and Bismuth in the Solidification and Electrolysis of Nickel-Oxygen-Bearing Copper Anodes
By O. Forsén
In the first part of this paper is studied the behaviour of small amounts of impurity elements? in the solidification of copper anodes. In the second part the dissolution of these impure anodes in sul
Jan 1, 1985
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A Thermodynamical Approach of Chemical Vapour Deposition of TiN on Stainless Steel
By Staia. Mariana H.
Thermochemical equilibria of the heterogeneous system Ti-N-H-CI-Fe-Cr-Mo-Ni-Mn-C were calculated by using a commercial software based on the minimization of the free energy. Equilibrium calculations w
Jan 1, 1995
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High Temperature Investigation Of Viscosity For Fecrmnni As-Cast Trip/Twip Steel
By Tobias Dubberstein, Hans-Peter Heller
The viscosity of Fe-Cr-Mn-Ni TRIP/TWIP (Transformation Induced Plasticity, Twinning Induced Plasticity) steel with varied nickel content is investigated using a vibrating finger viscometer. The viscos
Jan 1, 2015
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Some Milling Practices and Technological Innovations on Beneficiation of Antimony sulfide ores in China
By Hsi-keng Hu
"This paper deals with the flotability of stibnite and summarizes the major experiences and technological innovations of some typical practices of antimony sulfide ores in China. Experiences of cyanid
Jan 1, 1988
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TEM and SIMS Study of Duplex Structure of Anodic Films on Aluminum
By Noboru Masuko, Sachiko Ono
"The structure and composition of anodic films formed on aluminum in a borate solution have been investigated by using TEM and SIMS with respect to the effect of current density and electrolyte temper
Jan 1, 2000
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High-pressure Hydrides of Iron and Its Alloys
By V. E. Antonov
Hydrides of iron and iron-based alloys are thermodynamically stable only at hydrogen pressures in the gigapascal range and rapidly loose hydrogen under ambient conditions. At low temperatures, however
Jan 1, 2002
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Mineralogical Changes Occurring During the Decopperizing and Deleading of Kidd Creek Copper Refinery Anode Slimes
By T. T. Chen
Raw anode slimes consisting primarily of PbSO4, AgCuSe, Cu3Se2, Cu2-x Se, Cu2O, CuSO4.5H2O, Sn arsenate and Sb-Bi-As oxide are batch-leached with electrolyte-O2 to dissolve Cu. During this process, Cu
Jan 1, 1993
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Mineral Bioprocessing, an Overview.
By R. W. Smith
Living and killed organisms, particularly microorganisms, and extracellular products derived from the organisms are increasingly finding use in minerals engineering. Goals include both enhancement of
Jan 1, 1991
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Solvent Extraction Technology for the Extraction of Nickel Using LIX®84-I. An Update and Circuit Comparisons
By J. Murdoch Mackenzie
Two commercial nickel solvent extraction plants treating laterite leach solutions and using LIX®84-I have been operated in Australia. These circuits employ similar extraction chemistry but differ in t
Jan 1, 2004
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Effects of Silicon, Iron, and Chromium on the Response of Aluminum Alloy 3004 Ingots to Homogenization
By P. N. Anyalebechi
The effects of Si (0.19-0.52 wI. %), Fe (0.20 wI. %-0.44 wI. %), and Cr (0-0.10 wI.%) on the response of ingots of aluminum alloy 3004 solidified at different rates (O.IO°C/s to 30°C/s), to homogeniza
Jan 1, 2008
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Particle Size Analysis of Metal Nanoparticles using Ultra-High Resolution Mass Sensors
By Kerri-Ann Hue, Kerry Hasapidis, Ken Babcock, Patrick O'Hagan
"Metallic nanoparticles exhibit properties that are significantly different from individual atoms or bulk materials. Their applications are diverse and have varying uses in areas such as cancer treatm
Jan 1, 2011
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Characterization of Printed Circuit Boards from Scrap Printers
By Flávia Paulucci Cianga Silvas, Otávio da Fonseca Martins Gomes, Viviane Tavares de Moraes, Denise Crocce Romano Espinosa, Jorge Alberto Soares Tenorio, Guilherme Apostólico Bortolini, Stoyan Gaydardzhiev
"Printed circuit boards (PCB) are particularly problematic to recycle because of the heterogeneous mix of organic materials, metals, and glass fiber. PCBs are found in almost every electroelectronic e
Jan 1, 2014