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Flow and Settling Phenomena in Matte Smelting Electric Furnaces
By A. Andreas Hejja
Flow of slag and settling of matte in slag resistance electric furnaces are discussed in conjunction with furnace geometries, stirring action of the electrodes, buoyancy and electromagnetic effects. T
Jan 1, 1996
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Thermodynamic Modeling of the CaO-FetO-Caf2 System for Application in Electroslag Remelting
By Dmitri Nassyrov, In-ho Jung
"All relevant thermodynamic and phase diagram data in the CaO-Fe10-CaF2 system were critically reviewed. One set of model parameters describing the Gibbs energy of all phases has been obtained as a re
Jan 1, 2013
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Pilot-Scale Treatability Study Of The Xidagou Mixing Metallurgical Waste Water
By Xiang Zhu
Xidagou is the largest waste water discharge channel of the Anshan Iron and Steel Complex (AISC) with average flow rate of 8000 cubic meters per hour, which is about 75% of the total effluent of the A
Jan 1, 1994
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Enhanced Reduction of Self-Reducing Pellet of Chromites With Fe-Si Addition in the Reductant
By Adolfo Pillihuaman Zambrano
Fe-Cr-C production is a very high electrical energy consuming process. Decrease up to 10% of this electrical energy is expected when self-reducing agglomerates are used. This research aims to understa
Jan 1, 2008
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Alurec -A 'New Salt-Free Process: Far recovery of aluminum from dross and aluminum containing materials
By Henrlk Gripenberg
To solve the environmental and financial problems of the traditional Rotary Salt Furnace process, a new salt-free method for aluminum dross and scrap melting, ALUREC, has been developed by AGA and its
Jan 1, 1995
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Mechanism Of Na₂So₄ On Refractory Gold Concentrate At Roasting Pretreatment
By Bin Xu, Qian Li, Yong-bin Yang, Tao Jiang, Jian-jun Hu
It could significantly increase the leaching rate of refractory gold concentrate containing sulfur and arsenic by roasting pretreatment with adding certain amount of sodium sulfate, and the mechanism
Jan 1, 2015
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The Dissolution Of Metallic Zinc In D2EHPA
By Luis M. Chia
The direct dissolution of zinc in an organic solution of di-(2-ethylhexyl) phosphoric acid (D2EHPA) and kerosene was studied. The objective was to gain a better understanding of the fundamentals invol
Jan 1, 1995
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Alloy Solidification: Modeling Techniques
By J. A. Sekhar
Solidification processing/casting is increasingly being adopted as the preferred manufacturing technique for the fabrication of net shaped complex geometry components. Modeling of solidification proce
Jan 1, 1990
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Dissolution of Metals in Hydrometallurgy - An Interdisciplinary Subject
By Kenneth N. Ham
Hydrometallurgy covers a wide spectrum of areas and its knowledge base is enlarged and enhanced by contributions from many other fields. Dissolution of metals and alloys in aqueous media will be used
Jan 1, 2002
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Some Aspects Of Cementation Reactions (f73af15b-e0da-40ec-9c49-11c3f49fc9b6)
By Ian M. Ritchie
Cementation or metal displacement reactions such as Cu2+ + Fe Cu + Fe2+ are among the oldest known hydrometallurgical reactions. They are still used in the recovery of some metals and in the
Jan 1, 2003
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Segregation Arising from Natural Convection during Solidification
By J. R. Sarazin
Density driven convection during solidification has been recognized for some time to result in macrosegregation particularly when lower density alloying elements are rejected into the interdendritic l
Jan 1, 1991
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Thermodynamic Investigations Of Pyrometallurgy Of Sulfide Concentrates
By Vladimir Mindin
This paper presents results of thermodynamic investigations and experimental' studies of some essential for pyrometallurgy of sulfide concentrates topics. Among them: 1. Thermodynamic simulation
Jan 1, 1998
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Oxysulphide in Metallurgy of Nickel and Colbalt
By I. D. Reznik
On blowing nickel matte in a converter without quartz, first the oxidation of metallic iron and a part of FeS occurs without evolving sulfur dioxide, the formed FeO dissolves in a sulphide smelt and f
Jan 1, 1997
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CaF2-H2SO4 Leaching of a Manganese Silicate Ore
The U.S. Bureau of Mines investigated CaF2-assisted H2SO4 leaching to extract Mn from domestic silicate manganese resources. A pyroxmangite ((Mn,Fe)Sio3) ore containing, in pct, 34 Mn, 23 Si, 3 Ca, an
Jan 1, 1991
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Computational Modelling of Metals Reduction Processes
By M Philip Schwarz
"This paper reviews the status of computational modelling of a variety of common metals reduction processes, namely the blast furnace, rotary kiln and fluidised bed, and one new process not yet commer
Jan 1, 2001
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Fluid Flow Phenomena and Solidification Bera Vior during the Casting of a Pb-Sb-Sn Alloy
By Matthew John M. Krane
"The macrosegregation patterns and convective behavior of a Pb-5wt%Sb-35wt%Sn alloy are studied using new numerical treatments of solid particle motion and of transport phenomena occurring during the
Jan 1, 1999
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Use Of Direct Leaching Process in Heavy Raining Regions
By A. Lakschevitz
The Amazon region offers a large potential for gold extraction but its peculiar characteristics such as heavy rains, lacking of roads and general infra-structure, nature of the ore deposits, etc.. do
Jan 1, 1989
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Investigation of the Effects of Solidification Rate and Melt Hydrogen Concentration on Porosity Formation in Aluminum Alloy 2024
By P. N. Anyalebechi
"The effects of solidification rate, initial melt hydrogen concentration, and grain refining on porosity formation in aluminum alloy 2024 have been investigated with unidirectionally cooled laboratory
Jan 1, 2011
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Effect of Eh in the High Pressure Acid Leaching of Nickel Laterite Ores
By Julian Johnson
The effect of changing redox potential (Eh) on the high temperature sulfuric acid leaching of Western Australian dry-land nickel laterite ores has been investigated. In particular, the effect of added
Jan 1, 2004
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The Removal of Iron from Molten Aluminium
By H. M. . van der Donk
In this work an overview is given about the techniques available for the removal of metallic impurities from molten aluminium. The overview is focused on the removal of iron. Also, some experimental r
Jan 1, 1995