某矿山氰化尾矿浆无害化处理工艺研究  

Study on detoxification of the cyanide tailings pulp in a mine

作　　者：叶锦娟 高飞翔 兰馨辉 陈焰苗 王荣群 Ye Jinjuan;Gao Feixiang;Lan Xinhui;Chen Yanmiao;Wang Rongqun(Changchun Gold Research Institute Co.,Ltd.;Guizhou Zijin Mining Co.,Ltd.)

机构地区：[1]长春黄金研究院有限公司,130012 [2]贵州紫金矿业股份有限公司

出　　处：《黄金》2020年第8期85-87,90,共4页Gold

摘　　要：某矿山难选冶金矿石热压氧化—氰化提金工艺产生的氰化尾矿浆经浓密后湿式排入尾矿库,存在安全风险,且不满足环保要求。试验采用因科法、洗涤法、臭氧法和热压氧化液法等4种不同工艺进行氰化尾矿浆的处理,并从工艺的可行性和综合经济技术指标等方面进行对比分析,确定了最佳处理工艺。结果表明:热压氧化液法不需额外添加药剂,不引入其他干扰离子,实现了对氰化尾矿浆的脱氰处理。After thickening,the cyanide tailings pulp generated in the pressure oxidation-cyanide leaching process to treat refractory gold ores in a mine are discharged into the tailings pond in wet way,which is risky and can not meet environmental protection requirement.So the test uses 4 different processes including inco,washing,ozone and pressure oxidation solution to treat cyanide tailings pulp,compares them in terms of feasibility and comprehensive economic and technical index,and finally decides the best treatment process.The results show that the pressure oxidation solution process doesn’t need additional reagent,introduces no other interference ions,and can realize the decya-nation of cyanide tailings pulp.

关 键 词：氰化尾矿浆 热压氧化液 脱氰 洗涤法 无害化处理 

分 类 号：TD926.4[矿业工程—选矿]