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Zinc Recycling via the Imperial Smelting Technology - Latest Developments and PossibilitiesBy W. -D. Schneider, B. Schwab
Like all metals, zinc can be recycled theoretically without end. To demonstrate environmentally friendly use of zinc, it is necessary to increase the recycling rate. In this regard, the Imperial Smelt
Jan 1, 2000
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Thixotropic Flow Effects under Conditions of Strong ShearBy M. R. Barkhudarov
Semi-solid metal can be formed into useful products of near net shape and high quality. Use of this method has been limited, however, because of the difficulty of working with metal in the semi-solid
Jan 1, 1997
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Thermodynamics Of Indium Dissolution Behavior In Feo-Bearing Metallurgical SlagBy Yun Soon Han, Joo Hyun Park
Indium (In) solubility in the FeO-SiO2-Al2O3-5%CaO slag was measured under p(O2)=10¯¹¹ atm at 1573 K to clarify the dissolution mechanism of In in FeO-bearing metallurgical slag. The In solubility inc
Jan 1, 2014
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Reactive Plasma Spray Synthesis of Titanium CarbideBy Patrick R. Taylor
Coatings of TiCIFe have been produced by Reactive Plasma Spraying using ilmenite ore concentrate as the feedstock powder and methane as the reactive gas. A free energy minimization analysis of the ilm
Jan 1, 1998
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Problems With Elimination of the Main Impurities in the KGHM Polska Miedz S.A. Copper Concentrates from the Copper Production Cycle (Shaft Furnace Process, Direct Blister Smelting in a Flash Furnace)By Józef Czemecki
Polish copper concentrates are characterized by high levels of impurities, particularly Pb and As. Two technologies are being used for copper concentrate smelting at KGHM Polska Meidz S.A., namely the
Jan 1, 1998
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New Techniques And New Efficiencies At The San Manuel SmelterBy J. D. McCain
Magma's San Manuel smelter has adopted new operating techniques resulting in 21% increased productivity and 87% reduction in lost time accidents. Reverberatory furnaces were converted to coal fir
Jan 1, 1983
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Finite Element Simulation of the Directional Solidification Process for Cylinders (2D) and Rectangular Bars (3D)By A. F. Giamei, F. Landis, M. O. Duffy, R. J. Mador
"The directional solidification of complex advanced gas turbine airfoils must be carried out without the nucleation of undesirable grains and with minimal shrinkage. Such problems are typically elimin
Jan 1, 1986
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The Choice and Control of Parameters of the Direct Smelting of Copper Concentrates in a Flash FurnaceBy Z. Smieszek, J. Botor, Z. Miczkowski, S. Sobierajski
"From 1978, the direct process for the smelting of chalcocite concentrates in a flash furnace by the Outokumpu method has been applied at the Glogów II copper smelter. The chemical composition of thes
Jan 1, 1989
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Viscosity Estimation Model for an Oscillating Cup ViscometerBy Deming Wang, R. A. Overfelt
"The oscillating cup viscometer has become a dominant technique to measure the viscosities of high temperature molten metals. Unfortunately, the viscosity estimation model from the observed logarithmi
Jan 1, 2001
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Characterization Of Sintering Dust, Blast Furnace Dust And Carbon Steel Electric Arc Furnace DustBy Shengli Wu, Fengjie Zhang, Feng Chang, Hua Lu, Kaiping Du
In order to make a complete understanding of steel plant metallurgical dusts and to realize the goal of zero-waste, a study of their properties was undertaken. For these purposes, samples of two sinte
Jan 1, 2015
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Chemical Enrichment of Precious Metals in Iron Sulfides Using Microwave EnergyBy Bowen Li, Matthew D. Andriese, Jiann-Yang Hwang, Zhiwei Peng
"Magnetic iron sulfide ore particles heat rapidly by microwave (MW) irradiation generating plasma during oxidation of surfaces. The high temperatures produced by the exothermic event decompose local p
Jan 1, 2013
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Phase Relations During Sintering Of Iron Ore And Fluxing Effect Of Minor Components (3ffbbb58-61d4-40ed-8b6a-ded9b71780cd)By Florian Kongoli
The production of a homogeneous self-fluxing sinter is an important step in iron making processes. A good sinter should have good permeability and reducibility and has to keep those characteristics fo
Jan 1, 2003
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Vermelho Nickel Laterite Deposit -Geological Modeling and Resource Estimation DevelopmentsBy Marcio B. Fonseca
Nickel-cobalt laterite deposits have become the focus of attention for hydrometallurgical processing. Following the lessons of the second generation high pressure acid leach (HPAL) projects in Western
Jan 1, 2004
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Phase Relations During Sintering Of Iron Ore And Fluxing Effect Of Minor ComponentsBy Florian Kongoli
The production of a homogeneous self-fluxing sinter is an important step in iron making processes. A good sinler should have good permeability and reducibility and has to keep those characteristics fo
Jan 1, 2003
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Impact on Greenhouse Gas Emissions of a Switch from Carbon to Hydrogen as the Principal Reducing Agent in Producing MetalsBy James W. Evans, Brian R. Wildey
"Carbon has been the principal reducing agent in producing metals for centuries. Carbon is an inexpensive reducing agent, but also an effective one, as any undergraduate who knows her Ellingham diagra
Jan 1, 2008
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Application of High-Power Nanosecond Pulses to Flotation Separation of Sulfide MineralsBy Alexey T. Kovalev, Irina A. Khabarova, Valentine A. Chanturiya, Igor Zh. Bunin, Elizaveta V. Koporulina
"The paper presents new theoretical and experimental results about mechanisms of disintegration of mineral complexes and structural transformations of the sulfide surface under high-power nanosecond e
Jan 1, 2011
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Computation of Thermal Gradient During Solidification Modeling of Single Crystal Investment CastingsBy Andrew L. Puwis
Methodologies were presented for computing the thermal gradient associated with single crystal solidification in macroscopic computer modeling. The. heat transfer, and solidification of a shaped inves
Jan 1, 1994
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KLS Process Development for Lead SmeltingBy S. Suzuki, Y. Maeda, N. Wakamatsu
"A new pyrometallugical technology, named KLS process, has been developed by Dowa Mining at its Kosaka Smelter to smelt various kinds of lead raw materials.The process consists of clearly separated tw
Jan 1, 1988
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Reaction Rate of Coke with CO2 and Degradation of Coke after ReactionBy K. Murayama, M. Kawakami, T. Takenaka, S. Yokoyama
"Cokes play an important role of spacer in blast furnace. However, they degenerate during Boudouard reaction. Blast furnace cokes are reacted with pure C02 at I 072 to 1673 K. Reaction rate was obtain
Jan 1, 2000
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Effect Of Oxygen Enrichment On The Teniente Converter Productivity At The Ilo Smelter, PerúBy Jose Bengoa
Low metal prices and environmental restrictions are always a challenge for copper smelters operation and its productivity. Thus, in order to reduce production costs and control gas emissions, improvem
Jan 1, 2003