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Improvements Of Zinc Roaster Waste Heat Boiler
By Juha Järvi
Outokumpu Zinc Oy has two separate roasting lines with fluidized bed furnaces and waste heat boilers for calcine collection and heat recovery. During the last 30 years, zinc production in Kokkola plan
Jan 1, 2002
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Development Of Processes For Minimizing The Wastes
By Heikki Tuovinen
The total utilization of raw materials and energy is the most important criterion when planning. industrial processes. The main goal is clearly to use the raw materials and energy as effectively as po
Jan 1, 1992
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The Kinetics of the Sherritf Gordon Zinc Pressure Leach Process
By D. B. Dreisinger
The zinc pressure leach process developed by Sherritt Gordon, Ltd. permits the direct leaching of sulphide concentrates according to the overall reaction, ZnS +H,zS04 +402.+ZnS04+H20 +S0 The kinetic
Jan 1, 1990
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Control And Optimization Of Converting Practices
By Florian Kongoli
Converters have been playing an important role in the extraction and processing of metals ever since the first type of converter was invented about 100 years ago. Historically their operation has been
Jan 1, 2005
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Assessment of Lithium Pegmatite Ore Bodies to Determine Their Amenability to Processing for the Extraction of Lithium
By G. Mark Aylmore
Various processes have been developed using a combination of elevated temperature and chemical treatment processing to recover Li from silicate minerals. To facilitate further process development, a c
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Calibration of Textural Models for Liberation Prediction Using Heavy Liquid Separation Results
By G. Barbery
The models for particle composition prediction that have been put forward are limited to simple textures and lead to an independance of grade with respect to particle size in broken ore. A presentatio
Jan 1, 1987
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Effect Of The Oxygen Potential On The Viscosity Of Copper Smelting Slags
By F. Kongoli
Viscosity is an important parameter of copper smelting and converting processes. It affects the settling of matte or metal droplets in the slag, distribution of elements etc. Despite this importance,
Jan 1, 2003
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Titanium Metal: Extraction To Application
By Joseph Gambogi
In 1998, approximately 57,000 tons of titanium metal was consumed in the form of mill products (1). Only about 5% of the 4 million tons of titanium minerals consumed each year is used to produce titan
Nov 26, 1999
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Constituents and Porosity of Lead Concentrate Pellets Produced in the Trepce Plant
By Ahmet Haxhiaj, Jaroslaw Drelich
"Both composition and porosity of pellets are the main parameters influencing the reductive melting process in water-jacket furnace during the roasting of sulfide lead concentrate. Roasting in a smelt
Jan 1, 2011
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Recovery Of Platinum Group Metals From Automobile Catalytic Converters - A Review
By Rajesh Kumar Mishra
About 500,000 troy ounces of Platinum Group Metals (PGM) will be available for recycling each year from spent automobile catalytic converters in North America alone. Platinum Group Metals? from spent
Jan 1, 1989
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Green-Charge Reverberatory Furnace Practice at Onahama Smelter
By Moto Goto
Onahama Smelter of Onahama Smelting & Refining Co., Ltd. has two green- charge reverberatory furnaces; the old furnace was constructed in 1965 and the new one in 1973. This paper discusses the use of
Jan 1, 1976
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The Effect Of Collector/Metal Ion Ratio And Solution And Froth Height On The Removal Of Toxic Metals By Ion- And Precipitate-Flotation
By Kandipati Sreenivasarao
Ion and precipitate flotation involve adding an appropriate collector to aqueous solutions containing metal ions, to form hydrophobic metal-collector complexes or precipitates that can be removed by f
Jan 1, 1994
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Ore Microscopy of Uranium Minerals
By Richard D. Hagni
Although the economically important uranium minerals are difficult to recognize under the ore microscope, they can be identified by a combination of qualitative and quantitative techniques. Useful qua
Jan 1, 1981
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Performance Evaluation, Technical and Environmental Aspects of Biomass Cookstoves: An Exergy Approach
By Kunwar Pal, S. K. Tyagi, A. K. Pandey
"This study deals with the performance evaluation, technical and environmental aspects of different cookstove models (NIRE-02, NIRE-03 & NIRE-04). These cookstove models were designed, fabricated and
Jan 1, 2014
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Gold Leaching Characteristics And Intensification Of A High S And As-Bearing Gold Concentrate
By Bin Xu, Qian Li, Yong-bin Yang, Xiao-liang Liu, Tao Jiang, Yan Zhang
Some high sulfur and arsenic-bearing gold concentrate has a gold leaching rate less than 80% by oxidation roasting-pickling-cyanidation process. The characteristics and intensification of gold leachin
Jan 1, 2015
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Application of Simplified Quantitative Risk Analysis (SQRA) To Justify Optimization of Blast Hole Sampling, Sample Preparation and Assaying For Gold Ore Control
By Charles H. Bucknam
A gold sampling optimization study was carried out in support of open pit gold mining operations for the Newmont Gold Company Bootstrap-Capstone deposits in Northeastern Nevada. Six bulk samples were
Jan 1, 1999
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Thermodynamics And Kinetics Of Cyclones Melting Of Metal Sulphides
By I. Barin
The thermodynamics of cyclone smelting of sulphidic copper ores is described using as example the production of copper matte with 75 wt % Cu. Equilibrium calcualtions and material and energy balances
Jan 1, 1983
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Viscosity Measurements of Lead Slags
By Z. Zhang, R. G. Reddy
The viscosities of industrial lead slags with various compositions were measured as a function of temperature. It was found that viscosities of lead slags decreased with increasing temperature, and th
Jan 1, 2000
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Quantitative Mineralogy as an Aid to Beneficiation of Nickel Sulfide Ores
By M. B. Sizgoric
Quantitative mineralogy is used in a study done on an Inco Metals Company nickel sulfide occurrence from 'the Thompson area in Northern Manitoba. The study included: a) determination of the varia
Jan 1, 1981
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Research On Nox Reduction By Applying Coke Breeze Pretreated With Urea Additive In Iron Ore Sintering Process
By Xiao-hui Fan, Xu-ling Chen, Zhi-yuan Yu1, Guanghui Li, Min Gan, Yun-song Huang, Tao Jiang
Compared with the traditional de-NOx processes by cleaning the waste gas, a new approach for reducing the formation of NOx during sintering process is proposed. Since more than 90vol% of NOx comes fro
Jan 1, 2015