METHOD FOR EXTRACTING PLATINUM FROM ELECTRONIC SCRAP WASTES

摘要

FIELD: metallurgy. ^ SUBSTANCE: method for extracting platinum from electronic scrap wastes involves scrap crushing and melting in furnace using a molten header. As header there used is metal bismuth with addition of 0.5-1.0 wt % of indium, which is mixed with electronic scrap wastes in ratio of (2.0-2.5):1 as to weight at temperature of 800C. Then, exposure is performed during 30-45 minutes. After the exposure the temperature in the furnace is increased up to 900-1000C and the obtained molten bismuth - platinum alloy is oxidised by air blowing so that bismuth is changed over to oxide, and platinum - to globule enriched with platinum. ^ EFFECT: simpler and cheaper method for extracting platinum from electronic scrap wastes. ^ 1 ex