About how to Recover Gold from Electronic Scrap by Rodger Allen Gold Mine
Rodger Allen Gold Mine
2017-02-24
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Relatively raw gold is purified in two main ways. The low cost first stage of purification is the Miller process which uses chlorine gas and reaches purification of 99.5%, and then there is the more expensive Wohlwill process which electrolyses gold to purities of 99.99%.
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