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An Experimental Methed Of Recycling Silver From Disused Fixatives
Author(s): 
Pages: 53-54
Year: Issue:  1
Journal: NORTH ENVIRONMENT

Keyword:  银 回收 废定影液 Na2S Na2CO3;
Abstract: 废定影液中含有大量的贵金属银,若不进行必要的处理而直接排放,将会对环境造成严重污染,同时也造成了资源的浪费.对废定影液进行综合利用,不仅可获得一定的经济效益,而且也可以获得明显的环境效益.本文利用Na2S沉淀废定影液中的银,转化成AgCL后,用Na2CO3灼烧还原成单质的银,银的回收率>95%.
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