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Kinetics of Reduction of Lead Minerals and Commercial Lead Bearing Materials by CO/CO2 Gas Mixtures

  • Process & Extractive Metallurgy
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Abstract

This paper discusses the reduction kinetics of PbO and Pb3Ca2Si3O11, the principal lead bearing phase of commercial “sinter,” by CO/CO2 gas mixtures. The kinetic and diffusional parameters were determined with the aid of the grain model. Reduction experiments were also conducted with a synthetic “sinter” comprising a mixture of Pb3 Ca2Si3O11 and Fe2O3, and commercial “sinter.” Results indicated that low reactivity in the upper reaches of a lead blast furnace is due to the presence of lead as the complex silicate and to the low porosity of the commercial material.

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Authors
  1. M. M. Hussain
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  2. D. R. Morris
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Additional information

M.M. Hussain received his M.Sc. in chemistry from the University of Karachi in Pakistan. He is currently a graduate student in the Department of Chemical Engineering of the University of New Brunswick in Fredericton, New Brunswick, Canada.

D.R. Morris received his B.Sc. and Ph.D. in chemical engineering from the University of Birmingham and the University of London. He is currently a Professor in the Department of Chemical Engineering of the University of New Brunswick in Fredericton, New Brunswick, Canada. Dr. Morris is also a member of TMS.

Editor’s Note: This paper is adapted from a presentation at the 1985 TMS-AIME Annual Meeting in New York.

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Hussain, M.M., Morris, D.R. Kinetics of Reduction of Lead Minerals and Commercial Lead Bearing Materials by CO/CO2 Gas Mixtures. JOM 37, 57–61 (1985). https://doi.org/10.1007/BF03257684

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  • DOI: https://doi.org/10.1007/BF03257684

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