METHOD OF RECOVERY OF RARE-EARTH METALS, SCANDIUM AND YTTRIUM, FROM RED MUD OF ALUMINA PRODUCTION

摘要

FIELD: nonferrous metallurgy. SUBSTANCE: method may be used for production of rare nonferrous metals. The method includes separation of red mud pulp by density into heavy and light fractions and magnetic separation of heavy fraction with magnetic field intensity of 40-160 kA/m. EFFECT: reduced amount of harmful impurities in obtained concentrate and higher degree of recovery of rare earth metals, scandium and yttrium. 2 tbl