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                解决方案
                Solution
                Precious metal refining
                贵金属精炼
                金精炼是指除去粗金中的杂质,产出纯金的过程,金精炼常见的提纯方法有金电解法和一般化学法,一般化▓学法与电解法相结合流程为:溶解→赶硝→水解→还原→净化→洗涤、烘干→熔炼→金电解→洗涤、烘干→铸锭。