Bioleaching of whitehorse copper tailings with use of tank method
The scheme of biotechnology consisting of three stages is developed for processing Whitehorse Copper tailings. The first stage-tailings acidifying with sulphuric acid solution and extraction of the oxidized copper from solutions with use of the sorption on ion-exchange resin S - 930 ( Purolite , England). The second stage-bioleaching of the products after chemical processing by tank method with use of acidophilic associations WH - 1 and extraction of copper from productive solutions with use of method of cementation on iron scrap. As a result of the lead laboratory experiments at total time of process of 110 - 120 hours in solutions of two stages passes 92％ -97％ of copper. The third stage-extraction of gold and silver by thiosulfate leaching; as a result of 72％ -77％ these metals pass in solutions. After extraction of gold it is recommended to obtain magnetite from the products of thiosulfate leaching by magnetic separation.
bioleaching copper ores chalcopyrite pyrite acidophiles thiosulfate
Muyassar G. Sagdieva Sergey I. Borminskiy Aziza M. Mavjudova G. V. Cherkasova Brian Scott
Institute of Microbiology of Uzbek Academy of Sciences, 7B A. Kadyriy str. ,Tashkent, 100128, Republ Whitehorse Copper Tailings, Tagish, Yukon, Canada
国际会议
The 19th International Biohydrometallurgy Symposium(第19届国际生物湿法冶金大会 IBS2011)
长沙
英文
593-596
2011-09-18（万方平台首次上网日期，不代表论文的发表时间）