Process for refining gold and apparatus employed therefor

Details Process for refining gold and apparatus employed therefor Process for refining gold and apparatus employed therefor

C - Chemistry, Metallurgy

22

B

204/122, 53/235,

C22B 3/00 (2006.01) C22B 3/44 (2006.01) C22B 9/02 (2006.01) C22B 11/12 (2006.01) C25B 1/24 (2006.01) C25C 1/20 (2006.01) C25C 7/00 (2006.01)

Patent

CA 1322855

Abstract of the Disclosure Disclosed are processes and an apparatus for refining gold. One of the processes comprises dissolving unrefined gold by use of iodine and/or an iodide compound to form a solution containing an iodide compound of gold, removing insoluble substances in the solution, reducing the ions containing the gold by use of an alkali to selectively precipitate the gold of high purity. In this process, the iodine may be obtained by electrolyzing the iodide compound. The other process and the apparatus further comprise circulating the solution having been separated from the precipitated gold for reuse, and the alkali simultaneously produced by the above electrolysis is economically employed therein.

542230

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