Sulfide capacities of fayalite-base slags

The sulfide capacities of fayalite-base slags were measured by a gas-slag equilibration technique under controlled oxygen and sulfur potentials similar to those encountered in the pyrometallurgical processing of nonferrous metals. The oxygen pressure range was from 10 super(-9.5 ) to 10 super(-11) M...

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Bibliographic Details
Published in:Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 1995-04, Vol.26 (2), p.325-334
Main Authors: SIMEONOV, S. R, SRIDHAR, R, TOGURI, J. M
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Lime
Metallurgical fundamentals
Metals. Metallurgy
Oxygen
Production of metals
Q1
Silica
Sulfur
Sulfur compounds
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Summary:The sulfide capacities of fayalite-base slags were measured by a gas-slag equilibration technique under controlled oxygen and sulfur potentials similar to those encountered in the pyrometallurgical processing of nonferrous metals. The oxygen pressure range was from 10 super(-9.5 ) to 10 super(-11) MPa and the sulfur pressure range from 10 super(-3) to 10 super(-4.5) MPa, over a temperature range of 1473 to 1623 K. The slags studied were FeO-SiO sub(2) at silica saturation and those with addition of CaO, MgO, and Al sub(2)O sub(3) to determine their effect on sulfide capacities. For these slags, the sulfide capacities were found to vary from 10 super(-3.3) to 10 super(-5). The sulfide capacities increased with increasing temperature from 1473 to 1623 K. A comparison of the reported plant data on sulfur content of industrial slags shows good agreement with the present experimental results. The present data will be useful in estimating metal losses in slag due to metal sulfide entrainment in nonferrous smelters.
ISSN:1073-5615
1543-1916
DOI:10.1007/BF02660975