Plant Practice of Roasting Technology for Low-sulfur Bearing Gold Concentrates with Circulating Fluid Bed
Received:March 25, 2015  Revised:March 25, 2015
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DOI:Doi:10.3969/j.issn.1007-7545.2015.10.015
KeyWord:circulating fluid bed roasting; secondary floatation gold concentrates; low-sulfur bearing gold concentrates; two-stage roasting; gold extraction
              
AuthorInstitution
Li Yun 北京矿冶研究总院
Liu Hongxiao 新疆星塔矿业有限公司
Yang Hongzhong 招远市招金贵合科技有限公司
Huang Haihui 北京矿冶研究总院
Wang Yun 北京矿冶研究总院
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Abstract:
      Low-sulfur bearing gold concentrates were floated to output secondary floatation gold concentrates bearing 25% sulfur and tailings of low-sulfur gold concentrates. Secondary floatation gold concentrates were two-stage roasted. The results show that gold-bearing sulfides react completely and inclusion gold is fully exposed after circulating fluidization roasting. Gold cyanidation leaching rate is improved by 3 percentage point after transformation.
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