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Lead in the 1990s: Continuing Growth or Beginning of the End?
By Jeffrey L. Zelms
Environmental issues and how they are addressed -- or not addressed -- by the lead industry in the 1990s will determine the eventual fate of lead mining in both the U.S. and worldwide. Clearly, govern
Jan 1, 1990
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Study of Strengthen Pelletization of Nickel Laterite
By Guolin Zheng, Jian Pan, Deqing Zhu, Xianlin Zhou
"In ferronickel production, nickel oxide and part of the iron oxide are reduced to metal by agglomeration and smelting in blast furnace. Due to the physical and chemical properties of the laterite ore
Jan 1, 2011
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Mineralogical Characterization of Products from a Smelting Reduction Ironmaking Pilot Plant (c2515c5e-adcc-4096-8fe4-dbff926b0714)
By John W. Cash
The mineralogy and textures of cyclone dust, sludge, and occasional build-ups in the American Iron and Steel Institute (AISI) direct ironmaking pilot plant at Universal, Pennsylvania have been studied
Jan 1, 1995
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Some Kinetic Aspects of the Gaseous Chlorination of Titanium-Bearing Raw Materials
By C. A. Silva
The kinetics of chlorination of titanium-bearing raw materials has been investigated. For comparison purposes pellets of controlled macro-porosity, made of analytical grade TiO2 and anatase concentrat
Jan 1, 1997
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A Hydrometallurgical Way To Recover Zinc And Lead From EAF Dusts
By C. Lupi
In 1996 the Italian Agency for Environmental Protection (ANPA) has initiated a study of the environmental impact of the industrial sector of steel produced by Electric Arc Furnace (EAF). Within the fr
Jan 1, 1999
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Electrolytic Aluminum Waste Gas
By Zhihe Dou, Yu Fang, Zimu Zhang, Yan Liu, Xiaoli Jiang Dianhua Zhang, Guanting Liu
"With the idea of “waste control by waste itself”, we come up with the crafts of using waste calcium carbide to mineralize CO2 in electrolytic aluminum waste gas, design and make out “Venturi gas-liqu
Jan 1, 2014
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Air Separation Of Heavy Metal Contaminants From Soil
By Martin E. Nelson
Several heavy metal separation techniques are currently being developed for soil remediation at various Department of Defense and Department of Energy (DOE) Facilities. The majority of these technique
Jan 1, 1995
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Grain Size Effects in High And Low Transition Temperature Superconductors
By R. A. Masumura, C. S. Pande, D. Agassi
"Grain size has a different effects on the critical current density (Jc) of high and low transition temperature (Tc) superconductors. In high Tc superconductors, the critical current density Jc across
Jan 1, 1994
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Characterization of Powders Produced by the Impulse Atomization Process
By John Fallavollita
Conventional gas atomization produces powders that vary widely in size distributions and microstructures, thus making it very costly to produce powders tailor made in a narrow size distribution and mi
Jan 1, 1994
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Future Changes in the Physico-Chemistry of Zinc-Elegtrowinning
By A. von Röpenack
A forecast of the consequences of our techniques and goods produced, at least a technical assessment will be demanded from us as an industry. The hydrometallurgical winning of zinc is therefore at a
Jan 1, 1990
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Recovery of Silver From Residues of the Zinc Jarosite Process
By C. S. Ek
As a continuation of previous work, further tests have been carried out to recover silver from the residues obtained in a zinc jarosite process. Selective flotation has been performed with different r
Jan 1, 1990
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Optimizing Rotary Furnace Smelting Of Battery Residue
By Federico Chavez
The process for recovering lead from battery residues used in several Mexican Plants include lead blast furnace and rotary furnaces. The formers are basically fed with recycled batteries together with
Jan 1, 1995
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Effective Inoculation Of Grey Cast Iron
By Dariusz Kopyci ski, Józef Dorula
The study proves that by introducing the iron powder and disintegrated steel scrap to low-sulphur cast iron still before the inoculation carried out with a conventional graphitising inoculant, the mec
Jan 1, 2016
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Study On Damage Mechanism Of Ductile Cast Iron Cooling Stave
By Cui Wang, Bing Dai, Haibin Zuo, Jianliang Zhang
The damage mechanism of ductile cast iron cooling stave applied to No.4 blast furnace of Guofeng steel was analyzed through damage investigation in details, the damage causes: hightemperature gas flow
Jan 1, 2015
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Experimental Investigation Of Recycling Rare Earth Metals From Waste Fluorescent Lamp Phosphors
By Patrick M. Eduafo, Brajendra Mishra, Mark L. Strauss
Direct acid leaching of rare earth metals (REMs) from waste lamp phosphors is non-selective, leading to co-dissolution of impurities mainly calcium, phosphorus, silicon, iron and zinc. Calcining the p
Jan 1, 2015
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Advanced Oxygen Lances For Safer Furnace Tapping Operations
By Peter Sylvén, Darwin Morales
Despite being crucial for the smelting process, furnace tapping using oxygen lances has not been considered an operation that brings value. Therefore, these important tools have not seen a significant
Jan 1, 2016
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Reduction Kinetics Of Magnetite Concentrate Particles With Hydrogen At 1150 – 1600 °C Relevant To A Novel Flash Ironmaking Process
By Shengqin Zhang, Yousef Mohassab, Feng Chen, Hong Yong Sohn, Mohamed Elzohiery, Amr Abdelghany
A novel ironmaking process is under development at the University of Utah aimed at producing iron directly from iron oxide concentrate in a flash reactor. This process will reduce hazardous emissions
Jan 1, 2016
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Investigation Of Coal Tar Pitch Binder For The Production Of Formed Coal Briquettes For Corex From High Volatile Coal Powder
By Qiang Zhong, Bin Xu, Qian Li, Wei Gao, Yongbin Yang, Yaxuan Wang
Lump coal with high volatility is used for providing heat and reductive gas, and ensuring permeability in COREX. However, it is apt to be pulverized in transport and storage process. Therefore, compre
Jan 1, 2016
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Recovery Of Mercury And Lead From Wastewater By Sulfide Precipitation- Flotation
By Ting Liu, Qian Li, Peng Deng
The wastewater containing Hg2+ and Pb2+ does great harm to the environment and human bodies. Traditional wastewater treatment cannot fundamentally put a stop to heavy metals pollution for producing se
Jan 1, 2015
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Operation of Newmont's Biooxidation Demonstration Facility
By A. J. Schindler, F-P Sawyer, T. Logan, M. L. Shutey-McCann, R. M. Perry
"Test work on biooxidation pretreatment of low-grade refractory gold ores has been ongoing at Newmont Gold Company since 1988, including laboratory testing and pilot biooxidation heaps (360 to 23,000
Jan 1, 1997