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A Minimum Pollution, Low Energy Process for the Recovery of Cobalt and Copper from Complex Sulphide Minerals
By Yotamu Stephen Rainford Hara
"The aim of our work is to investigate a low energy and clean route for the recovery of copper and cobalt from complex sulphide mineral concentrates. The mineral concentrates were roasted in air, in t
Jan 1, 2013
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Lithium and Boron Extraction from the Rhyolite Ridge Ore Nevada USA
By Peter Ehren
Global Geoscience is developing a Rhyolite Ridge project, a shallow boron-lithium resource deposit, located in Nevada about 25 km from Albermarle’s Silver Peak operation. The main minerals of interest
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Copper Losses In Copper Smelting Slags (Invited)
By Ivan Imris
The common problem of new and conventional technology of copper production is the copper losses in the slags, which may be divided into mechanical and physico-chemical losses. In the first group can b
Jan 1, 2003
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Dynamics of Solidification and Microstructure Evolution in Undercooled Co-Cu-Alloys with Metastable Miscibility Gap
By M Kolbe
Co-Cu exhibits a metastable miscibility gap in the region of the undercooled melt. Specimens have been undercooled and solidified containerlessly into the metastable miscibility gap in an electromagne
Jan 1, 2002
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An Innovative Electro-Winning Process for Titanium Production
By Giuseppe Granata
An innovative process using titanium tetrachloride (TiCl4) gas as reactant has shown successfully to obtain titanium through electro-winning of TiCl2 formed in-situ on titanium cathode. The process in
Jan 1, 2014
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Modeling And Control Of Dioxin Formation During Iron Ore Sintering (f0829787-3522-495a-899a-a5e6b72d7adc)
By Pengfu Tan
In order to understand and control the formation of dioxins and furans in iron ore sinter plants and to possibly avoid expensive end-of-pipe removal stages, thermodynamic calculations on the stability
Jan 1, 2003
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Characterization of Amorphous Vacuum-Evaporated SnO2 Thin Films
By Shadia J. Ikhmayies
"Tin oxide (SnU2) thin films of thicknesses in the range 100-600 nm were prepared on glass substrates by vacuum evaporation at ambient temperature. The films were characterized by transmittance measur
Jan 1, 2012
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Effect Of P2O5 Or Na2O Addition On The Reaction Rate Of C02 Dissociation With FexO Containing Molten Oxides
By Hiroyuki Matsuura
The effects of P2OS or Na2O addition on the reaction rate of CO2 dissociation on the surface of FexO-base molten oxides was investigated at I 773K by isotope exchange method 1-6. The rate constant dec
Jan 1, 2003
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Optimization the Preparation of Activated Carbon from Walnut Shell with Microwave Heating Using Response Surface Methodology
By Xia Hong-ying, Peng Jin-hui, Zheng Zhao-qiang, Zhang Li-bo
"Preparation of activated carbon from the walnut shell by microwave assisted steam activation was studied. Influences of the three parameters, activation temperature, activation duration and steam flo
Jan 1, 2014
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Strengthening Refractory Iron Ore Sintering With Biomass Fuel
By Xuling Chen, Zhiyun Ji, Min Gan, Wenqi Li, Xiaohui Fan, Zhiyuan Yu
"Specularite and vanadium-titanomagnetite are difficult to granulate, and with the increase of their proportions, the permeability of sintering bed is deteriorated together with the combustion velocit
Jan 1, 2012
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Injection Challenges in the HIsmelt Process
By Peter Bates
"HIsmelt has faced and overcome many challenges in the understanding and development of injection technologies that satisfy process and engineering requirements for further scale up to a commercial pl
Jan 1, 1996
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Flash Smelting at Magma Metals Company San Manuel Smelter
By Tom W. Gonzales
Magma Metals Company commissioned a 3000 tpd Outokumpu flash smelting furnace in July 1988. Through September 1992 the PSP has smelted a first campaign record 4.1 million tons of concentrate. This pap
Jan 1, 1993
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Electron Microscopy Study of TiB Reinforced Nanocrystalline .Ti-MMC's Produced by Mechanical Alloying and Thermohydrogen Processing of TiH2-B Powder Mixtures
"Mechanical alloying (MA) synthesizing technology and thennohydrogen processing (THP) were utilized to produce nanocrystalline Ti-MMC's reinforced by TiB intermetallic compound by using TiH2-B powder
Jan 1, 1998
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Coal Characterization and its Relation to Physical Cleaning
By J. Y. Hwang
The relationship between coal characterization and physical cleaning has not been well understood due to the complex nature of coal. Therefore, it is difficult to apply the results of coal characteriz
Jan 1, 1988
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Sputter Deposition of Chromium Nitride Coatings on Steel
By M. Pakala, Z. Fan, Ray Y. Lin
Deposition of hard chromium coatings using electrodeposition is accompanied by emission of hexavalent chromium mists which is a carcinogenic. Hence alternative chromium deposition technologies are bei
Jan 1, 1998
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Precipitation Selectivity and Growth of Perovskite Phase from Titanium Bearing Blast Furnace Slag
By Taiping Lou
The effects of slag composition, additive agents, and heat treatment conditions on the perovskite (CaO ? TiO2) crystal morphology, the precipitation behavior, the crystal growth and the volume fractio
Jan 1, 2000
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Recovery and Separation of Ni and Co from Cobaltite and Siegenite Leach Solutions with a Pyridine-Based Extractant Mixture .
By Batric Pesic
Solvent extraction of nickel and cobalt from the real leach solutions was studied by using a novel extraction system. The extraction system was a mixture of 2,6-bis-[5-n-nonylpyrazol-3¬y]] pyridine (B
Jan 1, 1997
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PEM Fuel Cell Bipolar Plate - Material Selection, Design and Integration
By Atul Kurnar
In the present research a two-cell polymer electrolyte membrane fuel cell stack (PEMFCS) with SS-316 bipolar plates has been tested. Different flow field designs were studied and a modified multi-para
Jan 1, 2002
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Expansion Plans at CPM's Electrolytic Zinc Refinery
By S. J. Thiele, T. Newton, W. Magalhäes, T. Takayama, J. Welsh
Companhia Paraibuna de Metais (CPM) is presently pursuing a zinc production expansion project. Besides increasing production, the goal of the project is to address existing problems while providing a
Jan 1, 2000
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Low Temperature Reduction of Chromite Ores with Carbon
By R. G. Reddy
Reduction of different chromite ores with carbon was studied as a function of C/FeO ratio and temperature in the range 700 °C to 1100 °C by thermogravimetry (TGA) analysis. Powders of chromite ore(-15
Jan 1, 1998