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《Research of Environmental Sciences》 2008-06
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Research on Clean Production Techniques in Utilizing Cyanide Tailings

CHU Xian-feng1,ZHU Lei1,WU Xiang-yang2,KANG Guang-feng1,TIAN Jian-ru11.Qingdao Research Academy of Environmental Sciences,Qingdao 266003,China2.Qingdao Gold Lead/Zinc Mining Co.,Ltd,Qingdao 266715,China  
Cyanide tailings of a Xinhui gold mine were analyzed by spectroscopic method,phase analysis method and chemical method.The results showed that w(Pb) and w(Zn) were high in the cyanide tailings,reaching 12.45% and 14.00%,respectively.Pb and Zn can be reclaimed from the galena and sphalerite;the two ore particles' sizes ranged between 10-43 μm.According to the characteristics of the galena and the sphalerite,the pulp was pretreated,and new technology and pharmaceutical flotation system were used to improve the index for mineral processing technology.In the concentrated mixed lead and zinc mine,the Pb and Zn grades were 24.41% and 24.55%,respectively;in the concentrated zinc mine,the Zn grade was 46.63%.Wastewater from mineral processing can be reused after treatment by oxidizer,which can save 380 m3/d of fresh water.In addition,the last tailings can be used for raw materials of acid and cement.
【Fund】: 国家“十一五”科技支撑计划项目(2006BAC02A19)
【CateGory Index】: X705
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【Citations】
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【Co-citations】
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