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Carbon reactivation with a Combustion Air kiln with particular emphasis on the behavior of mercury during reactivation

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Abstract

This presentation describes the operation and features of the WCC Carbon Reactivation Kiln. Particular emphasis is placed on minimizing carbon losses, corrosion resistance, fuel efficiency and the fate of mercury during reactivation in the multiple-tube vertical retort. Detailed laboratory work indicates that there is complete vaporization of mercury in the kiln, no refluxing in the upper sections and distinct advantages in using this type of kiln when sizing collection equipment.

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References

  • Avraamides, J., et al., 1986, “Carbon in pulp gold technology,” AMIRA Project 83/P173A, Progress Report No. 2.

  • La Brooy, S.R., and Bax, A.R., 1985, “The fouling of activated carbon by organic reagents,” Chemeca 85, Australia.

  • Robinson, J., and Avraamides, J., 1990, “The behavior of mercury on activated carbon during reactivation,” private report, June.

  • Rosenzweig, M.D., 1979, “Mercury cleanup routes I,” Process Technology and Flowsheets, Chemical Engineering, 1979.

  • Sheffield, D.W., and Andreazza, J., 1990, “Mercury in carbon reactivation kilns,” private communication with Western Mining Corp., Stawell Joint Venture, January.

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  • Stewart, P.J., 1988, “Carbon regeneration kilns: Corrosion and control thereof,” Randol — Perth Conference, 1988.

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Authors and Affiliations

  1. Combustion Air, Pty. Ltd., Maddington, Perth, Australia

    P. J. Stewart (member SME, technical director)

  2. Pocock Industrial, Inc., Salt Lake City, UT, USA

    S. Tracy (member SME, metallurgical manager)

Authors
  1. P. J. Stewart
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  2. S. Tracy
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Additional information

SME preprint 90-448, GOLDTech 4, Sept. 10–12, 1990, Reno, NV. M&MP paper 90-644.

Discussion of this paper must be submitted, in duplicate, prior to Nov. 30, 1992.

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Stewart, P.J., Tracy, S. Carbon reactivation with a Combustion Air kiln with particular emphasis on the behavior of mercury during reactivation. Mining, Metallurgy & Exploration 9, 137–140 (1992). https://doi.org/10.1007/BF03402985

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  • DOI: https://doi.org/10.1007/BF03402985

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