METHOD OF PROCESSING OF WASTES OF BISMUTH ALLOYS Russian patent published in 1997 - IPC

Abstract RU 2083707 C1

FIELD: methods of production of nonferrous metals. SUBSTANCE: the offered method includes melting of wastes of bismuth alloys, addition of elementary sulfur at temperature of 280-350 C, successive treatment of produced melt with lead chloride and flux consisting of mixture of sodium hydroxide with 10-17% of soda from weight of flux, and separation of dross. melt is treated with lead chloride with its consumption of 3.1-3.8 for 1 kg of cadmium in wastes of melt at temperature of 380-450 C. EFFECT: higher efficiency. 2 cl

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RU 2 083 707 C1

Authors

D'Jakov Vitalij Evgen'Evich

Dates

1997-07-10—Published

1994-02-24—Filed