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Ambient Pressure Production of Crystalline Scorodite from Arsenic-rich Metallurgical Effluent Solutions
By D. J. Droppert
This paper describes the precipitation-production of crystalline scorodite (FeAs04.2H20) from arsenic-rich sulphate-based metallurgical solutions at ambient pressure (95°C). Arsenic is precipitated by
Jan 1, 1996
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The Oxidation Behavior Of 58 And 72 % Copper Mattes In A Simulated Flash Converting Furnace
By Kirsi M. Riihilahti
The oxidation characteristics of solid copper matte particles under simulated Kennecott-Outokumpu Flash Converting conditions are presented. The effects of feed matte grade, matte particle size, oxyge
Jan 1, 1998
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Chlorination: A Potential Approach for the Beneficiction of Chromite
By N. Kanari
One of the criteria to define the market value of chromite concentrate is its chromium to iron ratio. Changing this ratio for a definite chromite mineral is impossible by physical processing. This stu
Jan 1, 1997
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Separation of Cobalt and Metals in Acidic Chloride Solutions Using Diffusion Dialysis
By Zizheng Zhou
The separation of cobalt from other base metals can be achieved using diffusion dialysis in a two-compartment reactor separated by an anion exchange membrane. In this work, a Neosepta AFX membrane was
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High Grade Matte Production with Oxygen Enrichment by the Outokumpu Flash Smelting Method
By Sepp Härkki
The energy crisis in Finland after World War I1 together with a sharp rise in the price of energy caused Outokumpu Oy to consider replacing the electric furnace smelting of copper concentrates by some
Jan 1, 1976
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Model Studies of Drop Reactions with Gas Evolution
By D. K. Panda
The behavior of single drops with gas evolution at the interface is of interest because this is one of the important reactions that occur in oxygen steelmaking vessels, where a large amount of iron-ca
Jan 1, 1994
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Process-Measurements of Present Copper Smelting in Japan
By Ryokichi Shimpo, Akio Fuwa
"The process-measurements of copper smelters in Japan were investigated for the summary of the latest technique and for the fundamental study of process control. The smelters investigated are those em
Jan 1, 1989
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The Influence Of Reverb Slag Composition on Copper Losses
By Natasa Mitevska
The statistical analysis of the slag composition influence on copper losses to discard slag in the reverberatory furnaces No.1 and No.2 in the RTB BOR, Copper Smelter and Refinery (Yugoslavia) is pres
Jan 1, 2003
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Solid, Solution Reactions in the Hydrothermal Enrichment of Chalcopyrite at Elevated Temperatures
By Ray D. Peterson
The hydrothermal enrichment of chalcopyrite by CuSO, occurs in the absence of oxidizing or reducing reagants. Kinetics of the enrichment process were determined under autoclave conditions in the tempe
Jan 1, 1994
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A Minimum Pollution, Low-Energy Pyrometallurgical Process for Treating Chalcopyrite Concentrates
By William R. Opie
Considerable effort by extractive metallurgical research organizations has been devoted recently to developing pollution-free processes for treating copper sulfide concentrates. A number of hydrometal
Jan 1, 1976
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Activities Of Bi And In In The Bi-In Liquid Alloy Measured By Using Vacuum-Sealed Quartz CelV Atomic Absorption Spectrophotometer Combination (Invited)
By Shigeatsu Nakazawa
Activities of Bi and In in the Bi-In liquid alloy were measured over the whole range of composition at the temperatures from 850K to 1050K. An alloy was vacuum-sealed in a quartz cell and heated at th
Jan 1, 2003
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Activities Of Bi And In In The Bi-In Liquid Alloy Measured By Using Vacuum-Sealed Quartz Cell / Atomic Absorption Spectrophotometer Combination (Invited)
By Shigeatsu Nakazawa
Activities of Bi and In in the Bi-In liquid alloy were measured over the whole range of eomposition at the temperatures from 850K to 1050K. An alloy was vaeuum-sealed in a quartz cell and heated at th
Jan 1, 2003
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Developments in Integrated Furnace Controls to Enhance Furnace Operation and Crucible Integrity in Shielded-Arc Laterite Smelting
By Stober, Frank Allan
The paper describes the development of components in an lntegrated Furnace Control system for shielded-arc smelting focusing on operation and crucible integrity enhancement. The paper reviews the mech
Jan 1, 2004
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Reduction of Single Zinc Calcine Pellets
By E. M. Weenink
A proposed alternative to the conventional zinc extraction processes is the flash reduction of zinc calcines. As part of an overall study of this process, the kinetics of single zinc oxide pellets wer
Jan 1, 1992
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Falcondo Revisited
By Edwin de Jesús Deveaux
After 32 years of operations beneficiating lateritic nickel ore in a fully integrated pyrometallurgical complex, Falconbridge Dominicana (FALCONDO), situated at Bonao and La Vega Provinces, Dominican
Jan 1, 2004
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Desulphurisation of High-Grade Nickel Matte from Kalgoorlie Nickel Smelter Using Ausmelt Technology
By B. R. Baldock
The converting of high-grade nickel matte for production of low-sulphur matte or nickel metal is a process which has eluded metallurgists in the past because of the limitations of conventional convert
Jan 1, 1993
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A Computational and Experimental Study of the Fluid Flow in Weld Pools
By R. E. Sundell, S. M. Correa
"A mathematical model is developed for the fluid flow in tungsten-inert gas weld pools. The fluid is taken to be incompressible, viscous, electrically conducting, and confined within a pool of specifi
Jan 1, 1986
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Estimation of Viscosities of Multi-Component Melts at High Temperatures
By S. Seetharaman
A mathematical model has been developed to evaluate the viscosities of melts at high temperatures. The viscous flow in liquid is described by the equation, {n = Aexp(AG*/RT)} based on the absolute rea
Jan 1, 1994
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The Operation Of The Inco Flash Furnace Uptake: Combustion OfH2S And Formation Of Uptake Buildup
By J. Lui
The 15m high Inco flash furnace uptake was designed as a reaction chamber with the objective of destroying the H2S contained in the furnace off-gas by combustion with oxygen at about 1300?C. Until rec
Jan 1, 2003
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Treatment Of Steel Industry Wastes With Magnetic Hydrocyclones
By Charles H. Rawlins
Reported is work done on processing of steel mill effluents in the areas of dewatering and separation. Much of the waste from these operations is in the form of sludges from scrubbers, in which the pr
Jan 1, 1994