含碳复杂金精矿提取金银新方法的试验研究  

A New Recovery Method of Au-Ag from a Complex Gold Concentrate Containing Carbon

作　　者：赵天平 

机构地区：[1]河南有色地质勘查总院,郑州450002

出　　处：《矿产保护与利用》2007年第6期23-25,共3页Conservation and Utilization of Mineral Resources

摘　　要：介绍了采用"添加剂焙烧—氯化浸出—亚硫酸钠还原"工艺从某浮选含碳砷、高硫金精矿提取金银的试验过程和结果,该方法不仅克服了传统氰化法的流程长、劳动强度大、成本高等缺点,也克服了其它化学湿法回收贵金属高污染的缺点,而且回收率高,生产周期短,劳动条件较好,能综合回收有价金属。在合理工艺条件下氯化浸金率大于95%。A new Au - Ag recovery process, ＂additives roasting - chlorination leaching - reduction by sodium sulfite＂ for the complex gold flotation concentrate is described in this article. Compared with the traditional method, the new method has many advantages including not only high recovery, short flowsheet, good working condition, high product purity, low cost, less pollution, but also the fact that more other metals can be comprehensive utilized and etc. Its recovery of Au can exceed 95% under the reasonable process conditions.

关 键 词：含碳金精矿 焙烧 氯化浸出 亚硫酸钠还原 工艺条件 

分 类 号：TF803.21[冶金工程—有色金属冶金] TF831