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On the Homogenization of Cobalt Modified 17-4 PH Stainless Steel
By David Van Aken, Arpana S. Murthy, Simon Lekakh, Von L. Richards
"Three heats of 17-4PH stainless steel: with zero, three percent, and seven percent cobalt addition were melted in a 45kg (1 00lb) induction furnace under argon; and cast into no-bake molds and prehea
Jan 1, 2011
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Physical Modeling of Three-Phase Mixing in a Counter-Current Reaction Launder (CCRL) Process for Metal Refining
By Lloyd R. Nelson
Experimental results of three-phase mixing in a physical model of a CCRL for metals refining are presented. The system was operated above a critical lower liquid height-to- width ratio (H,/W) of unity
Jan 1, 1995
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The Behavior of Cobalt in Pyrometallurgical processes
By J. W. Matousek
Cobalt behavior in pyrometallurgical processes is traditionally analyzed using slaglmatte distribution coefficients as functions of matte grades or matte iron contents. L(s/m) = (%Co) I [%Co] = f [%C
Jan 1, 1993
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Experimental Study On Semi-Dry Flue Gas Desulfurization Ash Used In Steel Slag Composite Material
By Lijun Lu, Honghui Fang
This article carried out the experimental study on using desulfurization ash in steel slag composite material. This was done by investigating the desulfurization ash content in formula one and formula
Jan 1, 2015
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The Numerical Simulation and Application of Oxygen Lance in 120T BOF of Pansteel
By Sen-xiang Yang, Xin-teng Liang, Gui-jun Li, Jian-hua Zeng, Yong Chen
"This research is based on PANSTEEL 120t steelmaking converter technology to have the quantitative description of the time needed in uniform mixing of molten steel in the converter with the computer.
Jan 1, 2013
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Experimental Determination of Wall Heat Fluxes and Numerical Modelling of Transferred Arc(s). Can We Use it to Improve the Design and Operation of Our Plasma Reactor?
By J. A. Bakken
Thermal plasmas are interesting for a wide range of metallurgical and chemical processing applications. The 300 kW experimental reactor PRESS, which has been in use since 1987, is operated in the tran
Jan 1, 1991
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Recovery of Precious Metals from Base Metal Sulfide Ores by a Hydrometallurgical Process
By V. I. Lakshmanan, R. Roy
Base metals and PGMs are currently recovered from sulfide concentrates using pyrometallurgical processes. These processes suffer from several limitations such as being capital intensive, scaling probl
Jan 1, 2011
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Indium Recovery from Discarded Light Emitting Diode (LED) Liquid Crystal Display (LCD) TV: Influence of Leaching Reagents
By Priscilla Aki Mori de Hanashiro, Viviane Tavares de Moraes, Denise Crocce Romano Espinosa, Hugo Hashimoto
"The LCDs are used in televisions, calculators, mobile phones, computers (laptops and tablets), video games and other electronic devices. The advancements in technology make obsolete these devices, ca
Jan 1, 2014
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Bromination Roasting Of Rare Earth Oxides
By Larry G. Twidwell, Jannette L. Chorney, Bryce D. Ruffier, Katelyn M. Lyons, Daniel W. Gaede, Ryan J. Foy, Jerome P. Downey
The Metallurgical and Materials Engineering Department at Montana Tech is investigating various methods of extracting and refining rare earth elements from mineral ores and concentrates. As part of th
Jan 1, 2015
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Mechanical Equipments of No.3 Tankhouse at Onahama Smelter and Refinery
By H. Kohno
The Onahama No.3 tankhouse started commercial operation in early 1973, with the capacity of 8,500 metric tons per month. When the No.3 tankhouse was constructed, the starter sheet stripping section wa
Jan 1, 1987
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Alternative Lixiviant for Copper Leaching from Chalcopyrite Concentrate
By Junmo Ahn
This study investigated leaching kinetics by alternative lixiviants for copper leaching from chalcopyrite (CuFeS2), the most abundant copper resource in the world. As a refractory sulfide mineral, cha
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Reduction of Copper Ammine Solutions to Metal with Sulfur Dioxide
By D. A. Milligan
Ammonia leaching of copper sulfide concentrates, matte, scrap or other sources of copper yields copper amnine sulfate solutions which are converted to metal in a two-stage process involving precipitat
Jan 1, 1976
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Toward Mercury Management on U.S. Department of Energy Sites: Development and Selection Technologies
By Michael I. Morris
The U.S. Department of Energy's (DOE's) Transuranic and Mixed Waste Focus Area (TMFA), funded from fiscal year (FY) 1996 though FY 2002, was tasked with finding solutions for the mixed waste
Jan 1, 2003
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Simulation of Convection and Macrosegregation in a Large Steel Ingot
By J. P. Gu, C. Beckermann
"Melt convection and macrosegregation in casting of a large steel ingot is numerically simulated. The simulation is based on a previously developed model for multicomponent steel solidification with m
Jan 1, 1999
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Recycling Of Fluorescent Lamp Glass into Clayey Ceramic
By Thais Cristina da Costa Caldas, Carlos Mauricio Fontes Vieira, Alline Sardinha Cordeiro Morais, Sergio Neves Monteiro
"This work has as its objective to evaluate the effect of the incorporation of a glass powder waste obtained from discarded and Hg-cleaned fluorescent lamp into clayey ceramics used to fabricate brick
Jan 1, 2011
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An Experimental and Computational Study of Directional Solidification in Transparent Materials
By James E. Simpson, Suresh V. Garimella, III de Groh
"An experimental and numerical study of the horizontal Bridgman growth of pure succinonitrile (SCN) and of a succinonitrile-1.0 mol. % acetone alloy (SCN-1.0 mol. % ACE) has been performed. Experiment
Jan 1, 1999
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Recovery of Nickel and Vanadium from Heavy Oil Residues Using DC Plasma Smelting
By P. Tim Johnson
Relentless increases in demand for nickel and vanadium for uses such as steelmaking, catalysts and battery materials, plus the growing financial and environmental costs of their primary extraction, ha
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A Method For Rapid Characterisation Of Fly Ash
By C. D. Mishra
The recycling potential for any gainful utilisation of the waste products is dictated by their quality, especially the chemical characterisation. The methods commonly used for the analysis of fly ash
Jan 1, 1992
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Effect of Basicity and MgO on the Pelletzing of Specularite Concentrate
By Jinliang Zhang, Jian Pan, Deqing Zhu
"Limestone and burnt magnesite were added to vary MgO content and basicity (CaO/SiO2 ratio) of pellets for investigating their influences on the properties of specularite pellets. At fixed MgO content
Jan 1, 2012
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Recycling Washer Water in the Kroll Titanium Leaching Process
By S. A. Davis
In July of 1996, the Kroll process began production again at TIMET's Henderson, NV, manufacturing facility. This, after being shut down for several years due to low market demand for titanium. Fa
Jan 1, 1999