预处理—氰化工艺回收硫酸渣中金

Recovery of Gold in the Pyrite Cinder by Pretreatment and Cyaniding Craft

根据山东某硫酸渣工艺矿物学研究结果,进行了硫酸渣中金的回收试验研究,研究结果表明,通过预处理消除铁、铜等杂质对氰化过程的影响,采用"预处理—氰化"工艺流程,使硫酸渣中金的浸出率从52.15%提高到78.92%,该工艺为硫酸渣中金的回收提供了有效的技术途径。

Recycling gold tests on some pyrite cinder were conducted, according to the result of process mineralogy of the pyrite cinder. The results indicated that the influence of Fe and Cu on cyanide leaching was eliminated by pretreatment. As a result, the leaching rate of gold increased from 52.15% to 78.92% by the process of the pretreatment and cyaniding craft. The technology provides a effective tech-nical way for recovery of gold in the pyrite cinder.