沙金提炼黄金的方法:沙金提炼成黄金主要有两种方法,一种是火法炼金;一种是电解提金。火法炼金是首先把矿石粉碎,经过重沙法选矿,富集,然后在熔炉中提炼;电解提金是用氰化纳溶液,把矿石中的金溶解,然后通过电解法把黄金提出来,这种提炼法,金的纯度可以达到99.9%。
Gold refining gold: gold refining into gold mainly has two ways, one is the fire; a is gold electrolysis. The fire is, first of all, the ore is crushed, after heavy sand separation, enrichment, and then in the furnace refining; gold electrolysis is with solution of sodium cyanide, the gold dissolution in the ore, and then bring forward the gold by electrolysis, the extraction and the purity of gold can reach 99.9%.
|