我国多数黄金矿山生产的“粗金”(汞金和金泥),常采用火法直接冶炼合质金,操作复杂,造渣大,回收率低,成本高,且常因合质金含金低于50％不能交售银行而影响生产和经济效益。 为提高产品质量,对河南祁雨沟、康山金矿的合质金进行了金、银分离和提纯的试验研究,根据 Most of China’s gold mine production of “rough gold” (mercury gold and gold mud), the fire method is often used directly smelting gold, complex operation, large slagging, low recovery, high cost, and often because of gold and gold low gold 50% can not sell banks and affect the production and economic benefits. In order to improve the product quality, the gold and silver separation and purification experiments were carried out on the gold of Qiyuogou and Kangshan Gold Mine in Henan Province. According to the experimental study