FIELD: process engineering.
SUBSTANCE: invention relates to processing of Au-Sb antimony-based gold containing alloy. Proposed method comprises dissolving the alloy by hydrochloric acid, extracting antimony oxychloride chloride solution by hydrolysis and gold by sorption. Note here that alloy dissolution is effected by hydrochloric acid with hydrogen oxide solution. Extracted antimony oxychloride is dissolved in dihydroxysuccinic acid and resulted solution is directed to electro hydrolysis to produce cathode antimony. During hydrolysis the solution is regenerated to further use in dissolution. Gold is extracted by sorption from the solution containing 60 to 65 mg/l of gold with the help of high-basic anion exchanger AB-17.
EFFECT: treatment of alloys with wide range of noble metal concentrations within 0,1 to 1,3 %.
7 cl, 4 tbl, 1 ex
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