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《Metal Mine》 2003-01
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Study on Gold Extraction Technology of High Arsenic High Sulphur Gold Concentrate

Wen Jiankang Ruan Renman Yang Limei Song Yongsheng Li Hongxu(Beijing General Research Institute of Nonferrous Metals)  
Study on the composition of the tabling concentrate from the cyanidation tailings of some gold ore and on its gold extraction technology is presented. Research results show that the factors unfavourable to direct cyanidation-leaching include high rate of sulfide-included gold and high contents of impurities such as As, Cu, Bi and Sb which have close relation with Au, with intercement and intergrowth between them. Roasting by fluidized furnace can result in high removal rate of As and S and a basically complete inversion of metal sulfides into loose, porous iron oxides, leading to an increased gold leaching rate which can be as high as 96.95%. As a result, it is considered as a suitable gold extraction technology for treating the tabling concentrate of the cyanidation tailings of some gold ore.
【Fund】: 黄金开发基金项目
【CateGory Index】: TF831
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