FIELD: nonferrous metallurgy; processing arsenic-containing half-products of antimony production. SUBSTANCE: method involves aqueous leaching of arsenic alkaline half-products of antimony production, e.g. slags and sodium-containing fusion cakes of dusts, separating the antimony cake and treating filtrate with oxidant to a complete oxidation of components, then utilizing the sediment of low-soluble antimony compounds. Alkaline solution is utilized after recovery of arsenic. EFFECT: higher efficiency. 2 cl, 1 dwg, 1 tbl
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