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Enhanced Reduction of CaF2 And NaF on Vanadium Titano-Magnetite Carbon Composite Pellets
By Mingchun Lu, Zhe Wang, Mingming Cao, Xiangdong Xing, Shan Ren, Jianliang Zhang, Zhengjian Liu
"The effect of reduction temperature on the vanadium titano-magnetite carbon composite pellets was investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), and the discussion ha
Jan 1, 2013
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An Investigation of Heat Transfer Rates for Molten Droplets Falling in a Stagnant Gas
By J. B. Wiskel, H. Henein
"A study was conducted to establish the effective heat transfer coefficient for a single molten droplet moving in a gaseous medium. Towards this objective, a series of quench experiments were performe
Jan 1, 1999
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Recovery of Copper and Cobalt From Industrial Slag By Top-submerged Injection of Gaseous Reductants
By Xun An
Slag from an electric slag cleaning furnace was injected with methane and air mixtures to facilitate the recovery of copper and cobalt. The effects of methane-to-air ratio, gas flow rate and temperatu
Jan 1, 1998
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On Convection-Induced Phase Separation during Solidification
By Sven Eck, Andreas Ludwig, Menghuai Wu
"Phase separation is a frequently occurring phenomenon during solidification accompanied by melt convection, sedimentation or, in the case of two unmixable liquids, a Marangoni driven motion. In order
Jan 1, 2004
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Applications of Petrology and Geochemistry to the Study of Active Geothermal Systems in the Salton Trough of California and Baja California
By Elders. Wilfred A.
Petrological and geochemical methods, the utility of which has long been established in the mining industry, are proving useful and cost-effective in elucidating the thermal evolution of active geothe
Jan 1, 1981
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Formation Mechanism of Light Rare Earth -Iron Intermetallic Compounds in Reduction-Diffusion Process
By Zenjiro Asaki, Teruo Tanabe
"To clarify the formation of light rare earth (R =Ce, Pr, Nd or Sm) -Fe compounds in the reduction-diffusion (RD) process, two kinds of experiments were carried out: (a) RD experiment in which briquet
Jan 1, 1998
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Kinetics and Mechanism of the Reductive Leaching of Manganese Ores by Iron Pyrites in Mild Acidic Solutions
By K. M. Parida
The kinetics of dissolution of manganese dioxide in dilute sulphuric acid solution have been investigated using iron pyrites as a reductant. The dissolution rate of manganese is independent of the spe
Jan 1, 1990
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Effect of Oxygen to Alumina Ratio on the Viscosity of Aluminosilicate and Aluminate Systems
By Fei Ruan, Chang Jie, Jieyu Zhang, Jifang Xu, Kuochih Chou
"Viscosity is an important physical parameter of slag in metallurgical processes. Most studies of aluminosilicate and aluminate systems assume that aluminum occurs in tetrahedral coordination. In this
Jan 1, 2011
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The Distribution of Sn Between CaO–CuOx–FeOy–SiO2 Slag and Copper Metal at 1300 °C
By den Bulck A. Van
In Europe, 50% of the copper originates from recycling. High-Cu containing scraps are regularly rich in impurities like Fe, Ni, Sn and Pb. Many high-Cu containing scraps are fed directly into anode-fu
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Mineralogical Characteristics that affect Recoveries of Galena from Base Metal Ores
By William Petruk
Mineralogical and image analysis studies have been performed on four volcanogenic base metal ores that contain 0.01 to 4.5 wt% Pb to determine the behaviour of galena during mineral processing. The ga
Jan 1, 1990
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Selenate Reduction by Pseudomonas stutzeri
By Joni M. Barnes
A strain of Pseudomonas stutzeri isohted from selenium contaminated surface waters, was found to be effective . in reducing selenate (Se04 2) stoichiometrically to selenite (Se03 2 '), which was
Jan 1, 1991
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Miniplant Oxygen Flash Smelting Of Bulk Copper-Nickel Sulfide Concentrate: The Effect Of Coke Addition On Process Metallurgy
At its Copper Cliff Smelter, Inco Limited processes a bulk copper-nickel concentrate in two Inco oxygen flash furnaces, The furnace matte is converted to low iron matte for further processing, and the
Jan 1, 2003
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Mathematic Models of Lost Currents in Bipolal Cells
By Zhao Guangwen, Wu Tan, Qiuzhan Tian, Duan Shuzhen
"A thorough study of lost currents in bipolar cells has been made for the development of the great potential of bipolar cells in energy saving. A proper equivalent circuit for bipolar cells has been f
Jan 1, 1988
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Solid-State Aluminum Sensor for Use in Molten Zinc
By Jeffrey W. Fergus, Shiqiang Hui
"Aluminum is an important alloying addition to the zinc used in the hot-dip galvanization of sheet steel to control the properties and appearance of the resulting coating. Optimization of the galvaniz
Jan 1, 1997
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Heavy Metals Recovery in Vitrification Process of MSW Residues
By Takuya Shinagawa
After vitrification of the residues from a municipal solid waste incinerator, the vitrified products can be used as a construction material, and the dust can be used as raw materials for the non- ferr
Jan 1, 2002
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Impurity Eliminations From Molten Copper By Alkaline Flux Injection
By S. Mondon
Hibi Smelter which is a Copper Smelter lining a blast furnace, produces 2,700 metric tons of anode copper per month. Generally, in a copper refinery, arsenic and antimony are considerably troublesome
Jan 1, 1983
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The Behavior Of Impurities At Kosaka Smelter (b67cac2f-0f04-4349-9219-ab0d8df50a07)
By K. Walanabe
Kosaka Smelter & Refinery has a history of more than a century as a metallurgical department belonging to Kosaka mine. It has treated for a long time the "Black Ore" or the complicated concentrates dr
Jan 1, 2003
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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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High Purity Precious Metals
By Michael B. Mooiman, David J. Kinneberg, Philippe Cettou, Leo W. Simpson, Pierre Ramoni
"The demand for high purity precious metals began with certain industrial applications having uncompromising requirements for quality and performance. As industrial uses proliferated and as the jewelr
Jan 1, 1998
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Electrokinetic Treatment Of Contaminated Soils: Removal Of Lead From Porous Kaolinite
By I-Min Lu
An electric field was applied to a metal-bearing kaolinite specimen to investigate the efficiency of electro-osmosis in removing heavy metals from contaminated soils. The electric field induces a flow
Jan 1, 1996