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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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Recovery of Copper from Chalcopyrite by Means of a Cupric Chloride Leach
By K. J. Cathro
A hydrometallurgical process is described for the recovery of copper from chalcopyrite concentrates. The process is based on a cupric chloride leach, the concentrate having first been "activated" by h
Jan 1, 1976
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Influence Of Reduction-Carburization Conditions On The Rate Of Iron Carbide Formation
By A. A. el-Geassy
High-grade iron ore fines rejected from the DRl plants (>96%Fe20) were isothermally reduced in 30-60%COIH2 gas mixtures at 973-1273K. The freshly reduced reaction products were then subsequently carbu
Jan 1, 2003
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Sulfoxides and Its Complexes with Precious Metals
By Zhang Yongzhu
Sulfoxides are one kind of extractants for precious metals. The structure, the coordination reaction, the extraction behaviour and the precious metals complexes of sulfoxides are summarized. The diffe
Jan 1, 1992
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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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Slags And Fluxes In Pyrometallurgical Processes (Keynote)
By Florian Kongoli
Slags and fluxes are important interchangeable dimensions of pyrometallurgical processes. They can increase the efficiency of the smelting, converting and refining processes and improve the quality of
Jan 1, 2003
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Slags And Fluxes In Pyrometallurgical Processes (Keynote) (239add24-ba01-4884-88c7-e60e290dbab3)
By Florian Kongoli
Slags and fluxes are important interchangeable dimensions of pyrometallurgical processes. They can increase the efficiency of the smelting, converting and refining processes and improve the quality of
Jan 1, 2003
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Soda Fuel Cycle Metallurgy –Choices for CO2 Reduction
By Neale R. Neelameggham
"Ferrous and non-ferrous metal industries are used to handling several billion tons a year of ore bodies, fuel and fluxing agents by mineral processing techniques and varieties of extractive metallurg
Jan 1, 2008
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The Smelting of Copper-Nickel Concentrates in an Electric Furnace
By Roger C. Urquhart
Copper-nickel-sulphide ores mined in the Rustenburg district of South Africa are generally smelted in electric furnaces because of the high-temperature slag produced, the availability of cheap electri
Jan 1, 1976
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Hw Process Technologies, Inc's Engineered Membrane Separation (EMS) ,Of Copper And Gold In Cyanide Solutions
HW Process Technologies, Inc. (HWPT) has developed a patented membrane-based ion fractionation system, which specifically separates copper from gold and silver species in a cyanide matrix. This Engine
Jan 1, 1998
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Experimental Study of Phosphorus Distribution between Slag and Metal During Duplex Dephosphorus Converter Processing
By Xie Zhang, Jiang Diao, Xin Qiu, Lu Jiang, Bing Xie, Hong-Yi Li
"Duplex converter process, in which the first converter is used for removing phosphorus from hot metal (De-P), is an important way to produce low P-content and ultra-low P-content steels. In order to
Jan 1, 2013
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Copper from Copper Concentrates Via Solutions of Cuprous Sulfate in Acetonitrile -Water Solutions
By Alan James Parker
Chalcopyrite can be converted to pure copper by the following five steps. An exothermic sulfation roast of chalcopyrite; leaching of cupric sulfate from the calcine with dilute acid; precipitation of
Jan 1, 1976
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Destruction Of Nuclear Graphite Using Closed Chamber Incineration
By D. J. Senor
Closed chamber incineration (CCI) is a novel technique by which irradiated nuclear graphite may be destroyed without the risk of radioactive cation release into the environment. The process utilizes a
Jan 1, 1994
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Aluminum Trihydride Studied By Powder Synchrotron X-Ray Diffraction: Crystal Structure And Thermal Decomposition
By Jan Petter Maehlen
Solid H-absorbing materials are in focus of ongoing R&D to offer viable solutions for the hydrogen storage and supply systems aimed on use of hydrogen as energy carrier for automotive transportation.
Jan 1, 2006
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Gold Recovery from Refractory Sulfidic-Carbonaceous Ore Part 11: Thiourea Leaching Following Biooxidation-Heap Pretreatment
By R. Y. Wan
Low grade sulfidic-carbonaceous refractory ore from Newmont Gold Company's Carlin deposit was microbially pretreated. The biological pretreatment process gave partial oxidation of the sulfidic co
Jan 1, 1995
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The Hydrothermal Reaction and Kinetic of Enargite
By Gerardo Fuentes
The stoichiometry and kinetics of the hydrothermal reaction of enargite in copper sulphate solutions was investigated in the range 140–300 °C, and particle size under 15 and 50 μm. The stoichiometric
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Research On The Use Of Waste Silica From The Cerro Prieto Geothermal Field, Mexico
By John W. Lund
The Geo-Heat Center has been investigating the utilization of waste silica from the Cerro Prieto geothermal field for several years. The main objectives of the research were to com-bine silica with va
Jan 1, 2006
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Drilled and Tapped Slurry Pump Parts with Hardness in Excess of 700 HBN
By George A. Calboreanu
In order to overcome drilling and tapping of high hardness wear resistent material in slurry pumps, most of time mild steel inserts are mounted in the mold and after pouring they become an integrated
Jan 1, 1996
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The Environment Process; Towards Commercialization: A Decade Of Gestation
By S. Street
The Environment process, invented by Prof. H.K.Womer and developed at the University of Wollongong, simultaneously treats ferruginous and organic wastes via bath smelting. Conceived in the late 1980&a
Jan 1, 1996
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Household Battery Recycling in the United States: An Overview
By C. J. Beyke
In recent years recycling of household batteries has received increasing attention, primarily for environmental reasons. This article reviews the major battery types and some of the technologies avail
Jan 1, 1995