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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 5    No. 1    March 1995

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SELECTIVE COPPER REMOVAL FROM CUPRIFEROUS GOLD CONCENTRATE
 Deng Tong Muir David2

1.Institute of Chemical Metallurgy; Academia Sinica; Beijing 100080;
   2.School of MPS; Murdoch University; WA 6150; Australia

Abstract:Oxygenated chloride leaching process was tested on a Telfer off-grade copper-gold bulk concentrate to justify the pretreatment of gold materials containing considerable copper sulfides. It has proven to be feasible for extracting copper under rather mild conditions and leaving pyrite intact. Nearly 98% of copper was leached by this process using 0.5 mol/L chloride at 85℃ and only 0.2g/L iron was transferred into the pregnant solution.

 

Key words: copper; selective leaching; cupriferous gold concentate

ISSN 1672-7029
CN 43-1423/U

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