The Treatment of Hollinger Precipitate to Produce Fine Gold

CIM Bulletin1931
THE refining of precipitate is the final stage of all the processes involved in gold mining and cyanide milling, by which the precious metal is at last obtained in a concentrated form, which can be accurately valued and marketed. Possibly one ought to say, conveniently shipped, for accuracy in valuation depends in many instances on a toughening treatment given the bars as received at the Mint so as to obtain a homogeneous metal that lends itself to representative sampling; which, of course, entails a surcharge on the regular Mint charges for the extra work necessarily undertaken .
Keywords: Acid, Fines, Gold, hydrochloric acid, lead chloride, precipitate, sulphuric acid, zinc, Lead, Process, Processes, Silver, Treatment, zinc
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