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Flash Combustion of Sulfide Mineral Particles in a Turbulent Gas Jet.

Authors
Sohn-HY; Seo-KW
Source
Paper in Volume 3 of Multiphase Transport and Particulate Phenomena PP 501-543 :501-543
Link
NIOSHTIC No.
10008711
Abstract
Experimental measurements and mathematical model predictions for the flash combustion of copper sulfide particles in a turbulent gas jet are described. A mathematical model has been developed to describe the process taking place in an axisymmetric flash-furnace shaft. The model incorporates turbulent fluid dynamics, chemical reaction kinetics, and heat and mass transfer. The key features include the use of the k-e turbulence model, incorporating the effect of particles on turbulence, and the four-flux model for radiative heat transfer. The experiments were carried out in a laboratory flash furnace. Gas temperature, sulfur content in the particles, so2 concentration in the gas phase, and particle dispersion during flash smelting at different locations were measured for various matte grades. Reasonable agreement was obtained between the measured and predicted values.
Publication Date
19900101
Document Type
IH; Final Contract Report;
Fiscal Year
1990
NTIS Accession No.
NTIS Price
Identifying No.
MIR 47-90
NIOSH Division
WO;
Source Name
Paper in Volume 3 of Multiphase Transport and Particulate Phenomena, PP. 501-543
State
UT;
Performing Organization
University of Utah
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