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Sulfide and sulfate solid solubility in lime, magnesia, and calcined dolomite: Part I. CaS and CaSO4 solubility in CaO

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An Erratum to this article was published on 01 March 1975

Abstract

In the present work the solid solubilities of CaS and CaSQ, in burnt lime were investigated by equilibrating lime with CO-CO2-SO2 mixtures at temperatures from 950 to 1300°C. Also, the equilibrium constants for the formation of CaS and CaSO4 were determined. At high oxy-gen activities, corresponding to a CO2/CO ratio >100 in the gas, the sulfur dissolves in lime primarily as sulfate ions. At lower oxygen activities (CO2/CO <30), the sulfur goes into so-lution in lime essentially as sulfide ions. Over the temperature range investigated the limit-ing sulfide solubility is within 0.01 to 0.03 pct S, whereas the sulfate solubility is within 0.03 to 0.1 pct S, increasing with increasing temperature.

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Authors and Affiliations

  1. Chemical Metallurgy, Research Laboratory, U. S. Steel Corporation, 15146, Monroeville, Pa.

    E. T. Turkdogan (Manager), B. B. Rice (Research Metallurgical Analyst) & J. V. Vinters (Assistant Scientist)

Authors
  1. E. T. Turkdogan
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  2. B. B. Rice
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  3. J. V. Vinters
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Additional information

An erratum to this article is available at http://dx.doi.org/10.1007/BF02658425.

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Turkdogan, E.T., Rice, B.B. & Vinters, J.V. Sulfide and sulfate solid solubility in lime, magnesia, and calcined dolomite: Part I. CaS and CaSO4 solubility in CaO. Metall Trans 5, 1527–1535 (1974). https://doi.org/10.1007/BF02646322

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  • DOI: https://doi.org/10.1007/BF02646322

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