Fundamental studies on the loading of gold on carbon in chloride solutions

J. B. Hiskey, X. H. Jiang, G. Ramadorai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Scopus citations


The extraction of gold from chloride solutions with activated carbon is examined. It is shown that the uptake of gold by activated carbon from chloride solution follows a mechanism whereby gold is reduced to the metallic state. Metallic gold appears as deposits both on the carbon surface and in pore space within the carbon particle. The deposition rate is dependant on the carbon particle size and pH. At low initial gold concentrations, the initial rate is insensitive to gold concentration. Sodium hypochlorite exhibits an adverse effect on the reduction reaction. The overall loading and initial rate of reduction are both decreased in the presence of NaC10. The effect of iodide on the loading of gold was also examined in an attempt to overcome the superficial deposition of gold on carbon.

Original languageEnglish (US)
Title of host publicationProc Gold 90 Symp Gold 90
EditorsDonald M. Hausen, Douglas N. Halbe, Erich U. Petersen, William J. Tafuri
PublisherPubl by Soc of Mining Engineers of AIME
Number of pages8
ISBN (Print)087335091X
StatePublished - 1990
EventProceedings of the Gold '90 Symposium - Gold '90 - Salt Lake City, UT, USA
Duration: Feb 26 1990Mar 1 1990

Publication series

NameProc Gold 90 Symp Gold 90


OtherProceedings of the Gold '90 Symposium - Gold '90
CitySalt Lake City, UT, USA

ASJC Scopus subject areas

  • General Engineering


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