Extraction of Valuable Components in the Process of Recycling of Technogenic Materials of Alumina Production

Abstract

In the process of recycling man-made resource-saving additives into alumina raw materials, waste fireclay refractory bricks used for lining rotating furnaces and other thermal units were tested. A sufficiently high level of aluminum oxide extraction from fireclay lining has been experimentally confirmed. It has been established that when more than 95 000 tons of stored refractory fireclay brick waste is involved in the technological process, savings on a natural raw material resource are achieved: about 56 700 tons of nepheline ore.