归来庄金矿氰化尾矿浆臭氧除氰试验研究及生产实践  

Research of cyanide tailings slurry detoxification with ozone at Guilaizhuang Gold Mine and its production practice

作　　者：付玉平 郭兆松 Fu Yuping;Guo Zhaosong(Shandong Gold Guilaizhuang Mining Co.,Ltd.)

机构地区：[1]山东黄金归来庄矿业有限公司

出　　处：《黄金》2024年第6期101-104,共4页Gold

摘　　要：针对归来庄金矿全泥氰化—炭浆吸附工艺产生的氰化尾矿浆进行臭氧除氰试验研究,结果表明:氰化尾矿浆在pH值11.52,臭氧浓度7.14 g/m^(3)、投加量0.357 g/L条件下氧化反应2 h后,压滤渣毒性浸出液中总氰化合物质量浓度降至2.13 mg/L。工业生产实践中,氰化尾矿浆臭氧除氰工艺主要由来浆缓存、氧化反应和稳定处理3部分组成,总氰化合物去除效果良好,处理成本为6.00元/t_矿,且不引入其他干扰离子,满足HJ 943—2018 《黄金行业氰渣污染控制技术规范》中氰渣尾矿库处置污染控制技术要求。A study on detoxifying,with ozone,the cyanide tailings slurry generated in the all-sliming cyanidation-CIP process at Guilaizhuang Gold Mine was conducted.The results show that under the conditions of pH 11.52 and ozone concentration of 7.14 g/m^(3) with the addition of 0.357 g/L,after 2 h of oxidation reaction,the mass concentration of total cyanide compounds in the leachate of the filter-press cake was reduced to 2.13 mg/L.In industrial production practice,the cyanide tailings slurry detoxification process with ozone mainly consists of feed slurry buffering,oxidation reaction,and stabilization treatment.The cyanide removal effect is good,with an ore treatment cost of 6.00 yuan/t,and no introduction of other interfering ions.The cyanide residue meets the standards for the disposal and pollution control in tailings dam in HJ 943-2018"Technical specification for pollution control of cyanide leaching residue in gold industry".

关 键 词：全泥氰化 氰化尾矿浆 无害化处理 臭氧氧化法 工业应用 

分 类 号：TD926.4[矿业工程—选矿]