论文部分内容阅读
用硫脲酸性溶液从浮选半成品含金硫精矿中浸出金是个新型提金工艺,工业实践表明,用金属铁从矿浆中直接置换金的一步法,具有沉淀金泥快、效率高、工艺简单、操作方便等特点.但金泥含金品位较低(一般在0.5～07%左右),金泥量大,给金泥冶炼提纯带来一定的困难.对这类低品位金泥的冶炼处理,用火法直接熔炼;水氯化浸出;王水浸出等多种方法,结果均不够理想,都存在一定的缺点.寻求一个适于硫脲金泥特点、工艺简便、无毒无害的处理方法,将会对硫脲法提金工业生产有新的促
Leaching gold from flotation semifinished gold-bearing pyrite concentrate by thiourea acid solution is a new type of gold extraction process. Industrial practice shows that the one-step method of directly displacing gold from the pulp with metal iron has the advantages of quick precipitation, high efficiency and simple process , Easy to operate and so on.However, gold mud gold grade is low (generally about 0.5 ~ 07%), the amount of gold mud, gold mud smelting purification brings some difficulties.To these low-grade gold mud smelting treatment, using the fire method Direct smelting; water chlorination leaching; aqua regia leaching and other methods, the results are not ideal, there are some shortcomings.It is necessary to find a suitable thiourea gold mud characteristics, process is simple, non-toxic and harmless treatment, will be right Thiourea extraction of gold industrial production have new impetus