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Arsenic Processing At Mill Jobs

Arsenic, copper, and molybdenum were effectively removed from arsenic-bearing flue dust using a three-stage continuous sulfuric acid leach.Leach conditions to maximize arsenic and copper extraction while minimizing bismuth extraction were determined 25-wt pct h2so4, 20- to 25-wt pct solids, a leach temperature of 55 c, and a 30-min.

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