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Numerical Simulations of Jet Break-up Phenomena for the High Pressure Die Casting Process
By Valerio Viti
In High Pressure Die Casting a molten metal is injected through a thin gate into the cast cavity. High injection pressures and high gate velocities create atomization phenomena which can negatively af
Jan 1, 2006
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A Comparative Study of Oxidants on Gold and Silver Dissolution in Acidic Thiourea Solutions
By J. C. Huyhua
The effect or various oxidants on gold and silver dissolution in thiourea solutions (0.05 M in H2SO4) was studied using the rotating disc technique, a.t 2s c and 600 rpm. These studies were carried ou
Jan 1, 1989
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A Statistical Approach Study Of Copper Electrowinning Parameters
By D. Valic
In 1997, 9.2 million tonnes of mined, recoverable copper was produced, of which, 1.8 million tonnes or 19.4% was produced by leaching, solvent extraction and electrowinning. The amount of copper produ
Jan 1, 1999
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Mechanism of Selective Chlorination of Reduced Limonitic Nickel Laterite Using a Solid Chloride Agent
By Yan Fu, Chuanlin Fan, Xiujing Zhai, Yongfeng Chang, Binchuan Li
"The mechanism of the selective chlorination of nickel and cobalt in reduced limonitic laterite was investigated. Reduced ores were obtained from the reduction roasting of a limonitic nickel laterite.
Jan 1, 2011
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Molecular Beam Epitaxial Growth and Doping Of InSb Using SnTe Source
By Jie Li, Thomas A. Rawdanowicz, W. J. Collis, S. Venkatraman, S. Iyer
"InSb being the lowest band gap. material amongst the 111-V semiconductors with low effective mass has long attracted research interest, due to its potential application in far infrared devices and fo
Jan 1, 1998
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Thermodynamic Properties of ORC System with Zeotropic Mixed Working Fluids for Low Temperature Waste Heat Recovery
By Xin Zhang, Mengqi Li, Hongxu Li, Xinrong Zhang, Hao Bai, Ning Li
"Organic Rankin Cycle (ORC) is an effective technology to transform low-grade energy resource into electricity. In this paper, based on thermodynamic principle, considering the waste heat resource low
Jan 1, 2013
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Peirce-Smith Converting – Another 100 Years?
By Albert Wraith, Thomas Price, Wayne Boyd, Skip (I. E. ) Hills, Cameron Harris
Most Peirce-Smith converters inject air through tuyeres, with nitrogen representing the majority of gas passing through the process. The nitrogen controls the temperature of the vessel by carrying awa
Jan 1, 2009
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Mineralogy and Selective Upgrading of a Gold-Platinum Flotation Concentrate
Mineralogical and metallurgical scoping testwork were carried out to investigate the production of separate, marketable gold and platinum concentrates. The study utilized a flotation concentrate assay
Jan 1, 1994
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Onset of Void Coalescence Studied by X-Ray Computed Tomography
By Akihide Hosokawa
The void growth and coalescence in model materials involving a pre-existing three dimensional void array (i.e. multiple layers of a void array) was studied by X-ray computed tomography (XCT) coupled w
Jan 1, 2010
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Preliminary Experimental Study of the Thermal Stability and Chemical Reactivity of the Phosphate-Based Binder Used in Al2O3-Based Ceramic Foam Filters (CFFs)
By K. W. Cathrine Solem
Filtration of liquid aluminium is widely used in the industry for the removal of inclusions, and Ceramic Foam Filters (CFFs) are often the filtration media of choice. It is known that PH3 (phosphine)
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Modeling of Interdendritic Strain and Interdendritic Cracking Phenomena during Dendritic Solidification Processes
By Mostafa O. El-Bealy
"To estimate the interdendritic cracking tendency in casting processes, a new model for interdendritic cracking criteria has been proposed. The model combines a concept of the alloying element effect
Jan 1, 2001
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A Study on the Effect of Different Additives in Electrolyte in Zinc Electrowinning Process using Taguchi Statistical Experimental Design Methodology
By Somayeh Dashti, Ehsan Vahidi, Fereshteh Rashchi
"The main goals in zinc electrowinning process are decreasing of power consumption and increasing of current efficiency. In this study, the electrowinning of zinc in the presence of different additive
Jan 1, 2012
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Recovery Of Copper From Industrial Copper Reverb Slags
By R. G. Reddy
Industrial copper reverberatory furnace slags were treated by high temperature techniques (sulfide and carbothermic reduction) to recover copper in alloy or matte phase at 1473K. Recovery was investig
Jan 1, 1983
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Cyclic Stability Of Rare Earth Pentanickel Hydrides
By Dhanesh Chandra
Long term stability studies were conducted on four variants of LaNi5; 10,000 hydriding/dehydriding cycles were used to evaluate their suitability for a metal hydride cooling system. Thermodynamic and
Jan 1, 1989
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Pplied Mineralogical Studies Of Nigerian Bulk Complex Sulphide Ore
By P. A. Olubambi1
Representative samples of the hydrothermal vein deposits of the bulk complex sulphide ore deposit, 10 km south of Ishiagu, in Ebonyin State, South Eastern part of Nigeria were collected from two small
Jan 1, 2006
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CO2 Emission Reduction through Innovative Molten Salt Electrolysis Technologies Using Inert Anodes
By Huayi Yin, Wang. Dihua, Wei Xiao, Xuhui Mao, Diyong Tang
"The world production of crude steel reached 1.55 billion tons in 2012,which generated ~2.5 billion tons of CO2. Electrochemical metallurgy especially through high temperature molten salt electrolysis
Jan 1, 2014
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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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Photoluminescence of N-Type CdS Thin Films
By Shadia J. Ikhmayies
"Cadmium sulfide (CdS) in the form of thin films is an interesting material because it has a large variety of applications ranging from photovoltaic to luminescent devices. N-type CdS is usually used
Jan 1, 2013
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Pressure Water Leaching Molybdenum And Nickel From Mo-Ni Ore Of Black Shale Without Reagent
By Chang Wei, Zhigan Deng, Minting Li, Cunxiong Li, Xingbin Li
A direct hydrometallurgical process of extraction molybdenum and nickel from molybdenum-nickel ore by pressure water leaching without reagent was studied. The extraction of Mo and Ni from molybdenum-n
Jan 1, 2014
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Separation of Titanium Component from Treated Slag by Gravity Separation /Flotation
By Bingchen Chen, Zhitong Sui, Junwei Ma
"In the blast furnace slag, titanium disseminated in various mineral phases Titanium could be concentrated mainly in perovskite, which could be selectively precipitated and grown by optimizing the ope
Jan 1, 2000