FIELD: refining of non-ferrous metals; apparatus for separation of gallium and arsenic in cleaning secondary raw materials. SUBSTANCE: cylindrical heater of apparatus is made in form of sleeve with lower current lead where evaporating plate column is mounted in support; at the top, evaporating plates are covered with water- cooled condenser. EFFECT: possibility of reworking solid lumpy materials at high selectivity of separation of gallium and arsenic; arsenic is separated in compact metallic safe form on easily detachable condenser. 2 cl, 1 dwg
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