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Crystallization Behavior of Calcium Ferrite during Iron Ore Sintering
By Luben Xie, Lin Hu, Qiang Wang, Min Gan, Tao Jiang, Wenqi Li, Xiaohui Fan, Zhiyuan Yu
"Crystal precipitation behavior of calcium ferrite (CF) during iron ore sintering process along with the effect of cooling rate, SiO2 and Al2O3 on crystalline condensation were studied. The results sh
Jan 1, 2011
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Precursors for PCDD/F Formation During Combustion Process
By N. Menad
The formation of the dioxins can be dependent on the quantities of carbon, hydrogen, chlorine and oxygen present in a given system, as well as on parameters such as temperature and pressure. Inadequat
Jan 1, 2000
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Pullout Tests Behavior Of Epoxy Matrix Reinforced With Malva Fibers
By Vinicius Alves Gomes, Jean Igor Margem, Frederico Muylaert Margem, Sergio Neves Monteiro, Marina Rangel Margem
The interface between the matrix and the reinforcing fiber plays an important role in the efficiency by which an applied load is transmitted through the composite structure. The shear stress at the fi
Jan 1, 2015
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Top Submerged Lancing for Recovery of Zinc From ISF Slag
By M. Waladan
The top submerged lancing Sirosmelt system has been developed through laborator.y scale testwork and pilot plant trials for recovery of zinc from ISF slag. The effects of the process variables of gas
Jan 1, 1990
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Effect of Cu Thin Films’ Thickness on the Electrical Parameters of Metal-Porous Silicon Direct Hydrogen Fuel Cell
By Sevinc Yildirim, Cigdem Oruclus
"Metal-Porous Silicon (PS) based structures dipped in water show the direct hydrogen fuel cell behavior. The effect of the thickness of the cupper (Cu) film on the electrical properties of direct hydr
Jan 1, 2014
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Oxidized Pellet Preparation from Refractory Specularite Concentrates Using Modified Humic Acid (Mha) Binders
By Guohua Bai, Yuanbo Zhang, Guihong Han, Zijian Su, Daoyuan Zhang
"Specularite ores have poor hydrophilicity and ballability as well as inferior high-temperature reactivity, which restrict the large-scale application of them in the pelletizing and sintering producti
Jan 1, 2011
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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
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Reducing Refining Cycle Times to Extend Anode Furnace Campaign Life at Kennecott Copper
By Jun Enriquez
Kennecott Utah Copper aims to extend anode furnace campaigns to more than three years. As part of that goal improvements are sought on anode-furnace tuyere-area refractory performance. Kennecott and P
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Microbial Reduction of Lateritic Nickel Ore for Enhanced Recovery of Nickel and Cobalt through Biohydrometallurgical Route
By N. Pradhan, B. K. Mishra, B. D. Nayak, B. K. Mohapatra, R. K. Mohapatra
"Present study is about use of a group of Iron[Fe(III)] Reducing Bacteria (IRB) to convert the goethite (a-FeOOH) present in the original lateritic Nickel ore to magnetite under an anaerobic condition
Jan 1, 2009
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Heat Losses To Furnace Coolers As A Function Of Process Intensity
By Pan Gu, Zhen Zhang, Jiang Diao, Bing Xie, Hongyi Li
Furnace refractories are in most cases chemically incompatible with smelter slag, which leads to a steady erosion in their thickness over time. Once too thin, refractory walls become mechanically unst
Jan 1, 2016
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Microwave Thermal Prereduction With Carbon And Leaching Of Chromite Ore Fines
By QinGuo, Shenghui Guo, Lei Li, Jinhui Peng, Linqing Dai, Libo Zhang
The ferrous removal process after carbothermic reduction of chromite fines with microwave heating combined with leaching was investigated. Under the following conditions: Reaction temperature: 1150 ,
Jan 1, 2016
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Optimizing Rotary Furnace Smelting Of Battery Residue
By Federico Chavez
The process for recovering lead from battery residues used in several Mexican Plants include lead blast furnace and rotary furnaces. The formers are basically fed with recycled batteries together with
Jan 1, 1995
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Aluminum Smelter Waste Heat Recovery Plant (Heat Exchangers Fouling and Corrosion-a Detailed Investigation)
By Reza Kamali, Mohsen Bashiri, Hadi Fanisalek
"Nomenclature: A: area (m2), C: heat capacity (WIK), cp: specific heat (J/Kg K), d: internal tube diameter (in), F: correction factor for multi-pass and crossflow heat exchanger, h: convective heat tr
Jan 1, 2012
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1992 Major Repairs and Modifications to Key Equipment and Installations at Paipote Smelter - Chile
By A. Rios
ENAMl's Paipote Smelter commenced operations in 1951. At present, it processes 230,000 tonnes/year of green feed in a conventional smelter, which comprises one reverberatory furnace, two Hoboken,
Jan 1, 1993
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Direct Atmospheric Leaching of Saprolitic Nickel Laterite Ores with Sulphuric Acid
By Walter Curlook
An atmospheric acid leaching process for leaching nickel and cobalt from highly-serpentinized saprolitic fractions of nickel laterite deposits has been developed and patented [I]. The process involves
Jan 1, 2004
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Modern View on Composition of Autogenous Smelting Slags and Methods of their Decoppering
By A. V. Tarasov, V. M. Paretsky
"The knowledge of the true phase composition of the liquid slag is a very important problem, mastering of which grants the possibilities for the scientifically founded choosing of the decoppering meth
Jan 1, 2000
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Characterization of Intermediate Sulfur Layer during Acidic Oxidation of Chalcopyrite using Electrochemical Impedance Spectroscopy (EIS) and Atomic Force Microscope Spectroscopic (AFM)
By N. Krishna
The utilization of Electrochemical Impedance Spectroscopy (EIS) in conjunction with Atomic Force Microscopy (AFM) is a powerful surface characterization technique to study the role of sulfur formation
Jan 1, 1999
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Modeling of Lost-Wax Foundry Process.
By R. Hamar, G. Lamanthe
"To realize complex shaped pieces, like turbine blades, superalloys are cast with the lost-wax process. The end properties of these parts depend upon their microstructure as well as upon the occurence
Jan 1, 1986
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Thermodynamics of Phosphorous Distribution between Si and Fe-Si in Solvent Refining of Silicon
By Mansoor Barati, Leili Tafaghodi Khajavi
"This study involves employing solvent refining as a purification process in which silicon recrystallization takes place from an iron-silicon melt. It is believed that iron will act as the impurity “g
Jan 1, 2012
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Recovery of Un leached Gold Values from CIL TailingS
By R. E. Brewer
Pilot scale flotation tests were conducted with a l?ft-diam column at the Barrick Resources (USA) Mercur mine, Tooele County, UT, to scavenge unleached (0.01 to 0.018 oz/st) gold values from the taili
Jan 1, 1989