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Effect of Different Parameters on Synergistic Separation of Nickel and Cadmium from Sulfate Solution Using D2EHPA and Cyanex 302
By Ehsan Vahidi, Fereshteh Rashchi, Ataollah Babakhani, Alireza Zakeri
"The synergistic effect of Cyanex 302 on solvent extraction of nickel and cadmium from sulfate solution with D2EHPA diluted in kerosene was investigated with the aim of increasing separation efficienc
Jan 1, 2012
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A Direct Reduction Zinc Process
By Lamar S. Todd
The direct production of metal from a sphalerite concentrate is an attractive route for primary zinc. A series of operations and conditions have been selected to efficiently cause the following overal
Jan 1, 1999
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Charactarisation of Corrosion Properties of Za-27/ Quartz Metal Matrix Composites
By Uchil Jayagopal, P. V. Krupakara, S. Manjunath
"This paper deals with the corrosion characterization of quartz particlate ZA-27 alloy metal matrix composites (MMCs). Quartz particles of size 50-80 microns are used as reinforcement. MMC's are prepa
Jan 1, 2000
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CaF2-H2SO4 Leaching of a Manganese Silicate Ore
The U.S. Bureau of Mines investigated CaF2-assisted H2SO4 leaching to extract Mn from domestic silicate manganese resources. A pyroxmangite ((Mn,Fe)Sio3) ore containing, in pct, 34 Mn, 23 Si, 3 Ca, an
Jan 1, 1991
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Research on Raw and Beneficiated Minerals Systems for Steel Plant Refractories
By R. E. Moore
The lining systems currently in use in BOF furnaces, certain steel ladles, and the slag line of electric are furnaces were developed during the late seventies through the mid-eighties using a trial an
Jan 1, 1991
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Recent Modifications And Operation Of the Acid Plant At Naoshima
By T. Ueno
Naoshima Smelter & Refinery of Mitsubishi Materials Crop. commissioned a new Mitsubishi continuous copper smelter in May 1991. Process offgas volume of the conventional reverberatory furnace line, one
Jan 1, 1992
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Flow and Settling Phenomena in Matte Smelting Electric Furnaces
By A. Andreas Hejja
Flow of slag and settling of matte in slag resistance electric furnaces are discussed in conjunction with furnace geometries, stirring action of the electrodes, buoyancy and electromagnetic effects. T
Jan 1, 1996
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Rigs From Iron Containing Dusts & Sludges
By Christopher M. Moore
DK Recycling und Rohelsen GmbH converts 380 000 annual tonnes of iron containing waste materials Into pig Iron. Zinc Is the main reason that these materials are classified as waste. The materials are
Jan 1, 1995
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Recycle Of Tankhouse Solutions At Cerro Copper Products Electrolytic Copper Refinery In Sauget, Illinois
By John L. Sundstrom
Complete systems were designed -and are in operation to recycle the effluent streams and to remove impurities from tankhouse. electrolyte, Heavy em¬phasis was placed on making usable products from as
Jan 1, 1992
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Rate and Mechanism of the Reduction of Multi-Valent Iron Oxide from Slag
By D. E. Woolley
The rate of reduction of iron oxide from calcia-silica-alumina slag by carbon in liquid iron has been measured over the temperature range 1400-1600°C by monitoring the rate of carbon monoxide (CO) evo
Jan 1, 1998
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Processing of Spent Catalysts by Selective Chlorination
By I. Gaballah
Spent hydrorefining catalysts may contain 4 to 6 % of COO and/or NiO, 8 to 16 % of Moo3 and up to 10 % V205 generally supported by alumina. Raw samples are roasted in order to eliminate carbon, sulfu
Jan 1, 1993
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Biological Separation of Phosphate from Ore
By Robert D. Rogers
The demand for phosphate will continue into the future, because phosphate is currently irreplaceable as a plant nutrient and in many chemical applications. Phosphate is not recycled, so the supply mus
Jan 1, 1991
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Hydrolytic Precipitation of Nanosized TiO2 Phases for Use as Photocatalytic Sorption Media in Effluent Treatment
By Konstantina Chalastara
Mixed phase titanium dioxide (TiO2) nanoparticles synthesized through hydrolysis of TiCl4 solution at different conditions, namely concentration, pH, and residence time are characterized and evaluated
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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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The Use of Inorganic Peroxides as Accelerators for Gold Heap Leaching
By S. P. Ball
A major limitation to maximising the rate of gold extraction in commercial operations occurs as a consequence of the limited solubility of oxygen in cyanide liquors. The use of additions of solid inor
Jan 1, 1989
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Modern Off-Gas Treatment Secures The Future Of Sulfide Smelting
By Karl-Heinz Daum
Outokumpu Lurgi Metallurgie GmbH, Oberursel, Germany ? give saleable by-products, ? not interfere with smelter performance, ? treat all gas streams simultaneously, and ? comply with environm
Jan 1, 2002
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Analysis of Carbon Emission Reduction of China’s Integrated Steelworks
By Hongxu Li, Pu Liu, Hao Bai, Daqiang Cang, Lihua Zhao
"Coal, as the main energy in ferrous metallurgy, is consumed on a large scale and great amount of CO2 is emitted likewise. In this paper, a model, based on carbon balance, was developed for CO2 emissi
Jan 1, 2011
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Electrolytic Zinc Recovery in the EMEW® Cell
By P. A. Treasure
The EMEW® cell has been developed to overcome a number of inherent limitations in conventional electrowinning technology, particularly the high cost and restricted process windows characteristic of co
Jan 1, 2000
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Volatilization of Zinc and Manganese From Natural and Synthetic Franklinite, Jacobsite and Willemite in a HCI/H2O Pyrohydrolytic Atmosphere
By Edgar Peek
Lixiviant regeneration is by definition a precondition for any hydrometallurgical process. In chloride hydrometallurgy either HCl or Cl2 has to be regenerated in order to establish an economically via
Jan 1, 1995
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The Effect of Fluid Velocity of the Electrolyte on the Copper ElectrorefiningThe Effect of Fluid Velocity of the Electrolyte on the Copper Electrorefining
By A. Tsubouchi, F. Noguchi, T. Takasu
"A high current density operation is desired to improve the productivity in copper electrorefining. However, a lot of problems still remain such as passivation at anode, dendritic deposition at cathod
Jan 1, 1997