METHOD OF PLATINUM BLACK REFINING

摘要

FIELD: nonferrous metal metallurgy, hydrometallurgy. SUBSTANCE: method involves reprecipitation of chloroplatinate to chloroplatinite by its reduction followed by recovery of chloroplatinite to chloroplatinate with oxidizing agent and halogen-containing compound mixture and formation of intermediate diaquacomplex in acid medium. EFFECT: improved platinum black refining from impurities.