采用硫脲法浸金工艺对某难处理氰化尾渣进行浸出试验。结果表明,在液固比3∶1,pH=1~1.5,硫脲浓度2kg/t,温度60℃,浸出6h时,金浸出率可达82.30%。
The cyaniding tailing of refractory gold ore was leached with thiourea process.The results show that the extraction rate of gold can reach 82.30% on the conditions including ratio of liquid to solid of 3∶1,pH of 1-1.5,thiourea concentration of 2 kg/t,temperature of 60 ℃ and leaching time of 6 h.