从低金高杂质氯化溶液中制备高品质粗金粉的试验研究  

Study on preparation of high-quality crude gold power from low-gold high-impurity chloride solution

作　　者：雷刚 刘永平 陈善文 黄晶明 Lei Gang;Liu Yongping;Chen Shanwen;Huang Jingming(Guixi Smelter of Jiangxi Copper Corporation Limited)

机构地区：[1]江西铜业股份有限公司贵溪冶炼厂

出　　处：《黄金》2023年第12期36-38,共3页Gold

摘　　要：针对从杂质含量高的含金氯化溶液中还原得到的粗金粉品质波动问题,进行了SO 2气体从低金高杂质氯化溶液中直接还原制备粗金粉的试验研究。结果表明:所得粗金粉金品位可达99.95%以上,为高品质粗金粉。该方法步骤简便,适用性广,有价金属回收率高,特别克服了严寒地区或冬季气温低问题,保障了工艺稳定性。In response to the quality fluctuations of crude gold powder obtained by reducing gold chloride solutions with high impurity content,an experimental study was conducted on the direct reduction of crude gold powder from low-gold high-impurity chloride solutions using sulfur dioxide gas.The results showed that the gold grade of the obtained crude gold powder can reach more than 99.95%,which is high-quality crude gold powder.This method is simple in steps,widely applicable,and has a high recovery rate of valuable metals.It especially overcomes the challenges of cold regions or low-temperature winters,ensuring the stability of the process.

关 键 词：氯化溶液 还原 粗金粉 二氧化硫 金品位 

分 类 号：TF831[冶金工程—有色金属冶金]