Abstract
This report considers physico-chemical foundations and technological schemes for processing three kinds of wastes: (1) of aluminum production - red slimes; (2) processing of pyrite concentrates - burnt pyrites; and (3) production of phosphorus fertilizers - phosphogypsum. The ore base of Ural's ferrous and non-ferrous metallurgy industry is represented by polymetallic raw materials resources. As a result of the non-efficient use of raw materials and imperfect technological processes, a catastrophic ecological situation has been created in the Urals: hundreds of millions of tonnes of non-ferrous metals production wastes have accumulated occupying 40000 to 45000 hectares. Each year the amount of wastes increases by 150 millions t. Similar situations take place in a number of other countries.
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