一种含硫金精矿的火试金方法试验研究及改进

A gold sulfur concentrate fire assay method of experimental research and improvement

本方法基于高含硫金精矿的还原力主要是样品中的硫这一情况,测得样品中硫的含量就可以计算出样品的还原力,代替金精矿化学分析方法—火试金法测定金量和银量（国标）对样品的还原力的测定。另外将覆盖剂由一定比例的硼砂和碳酸钠代替氯化钠,以减少有毒物质的排放,并大幅度降低氧化铅的配料量,铅扣重量由30克提高到40克,以便将样品中的贵金属更好的回收,按此方法配料快速、简单,成本低,准确,化验合格率高。

The method is based on the reducing power of high sulfur gold concentrate mainly sulfur sample of this situation, the content of sulfur in the measured sample can be calculated reducing power of the sample, instead of the gold concentrate chemical analysis - fire assay determination of gold and silver content （GB） determination of the reducing power of the sample. In addition to coverage by a certain percentage agent borax and sodium carbonate instead of sodium chloride, to reduce emissions of toxic substances, and to significantly reduce the amount of ingredients lead oxide, lead by weight of 30 g buckle up to 40 grams, so that the sample better recovery of precious metals, this method ingredients fast, simple, low cost, accurate tests pass rate.