Государственное высшее учебное заведение "НАЦИОНАЛЬНЫЙ ГОРНЫЙ УНИВЕРСИТЕТ"
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Priority to UAA201114266ApriorityCriticalpatent/UA104182C2/en
Publication of UA104182C2publicationCriticalpatent/UA104182C2/en
The invention relates to the methods of ore dressing. A method of complex enrichment of iron quartzites includes classification thereof into magnetite free-milling and oxidized hard-milling species, concentration at respective technological facilities. According to the invention, shredded oxidized quartzites are subject to preliminary concentration by gravitational or magnetic methods, and the resulting dehydrated rough concentrate (middlings) is subject to direct reduction of finely disseminated iron oxides, the product of recovery process is subject to milling, classification and concentration on magnetic separators. The invention provides for obtaining in a single technological cycle of metallized high quality concentrates of substandard and oxidized species of hard-milling iron quartzites.
UAA201114266A2011-12-022011-12-02Method of complex enrichment of iron quartzites
UA104182C2
(en)