METHOD OF VANADIUM EXTRACTION AND RECOVERY Russian patent published in 2015 - IPC C22B34/22 C22B3/10 C22B3/38 

FIELD: mining.

SUBSTANCE: invention relates to the method of vanadium extraction and recovery from ores. The method includes stage (i) of acid leaching of ore containing vanadium, titanium and iron, with extraction of vanadium and iron to the solution. The stage (ii) of separation of product obtained at stage (i) to the liquid product and solid substance is performed. Then stage (iii) of vanadium extraction from the liquid product to the organic extractant, and stage (iv) i.e. transfer of saturated organic extractant obtained as result of the stage (iii) to stage of re-extraction using acid are performed, at the later stage the vanadium is selectively and successively extracted from the organic extractant. After re-extraction stage (v) of vanadium restoration from the re-extractants is performed.

EFFECT: increased economic feasibility of the hydrometallurgical method of the vanadium and associated valuable metals extraction.

14 cl, 23 dwg, 1 tbl, 1 ex