| 摘要 |
FIELD: mining. ^ SUBSTANCE: method involves ore pre-benefication with X-ray radiometric separation and further heap leaching of antimony from ore. At that, leaching is performed with solution containing sulphuric acid and sodium chloride in presence of manganese compounds of oxidation degree of not less than 3 or with solution containing chlorhydric acid, active chlorine and sodium chloride, or with solution containing sulphuric acid and sodium chloride in presence of chlorinated lime. Productive antimonous chloride solution obtained after leaching is supplied for removal of antimony with cementation, hydrolysis or electric deposition. After removal of antimony the solutions are regenerated with release of manganese compounds and returned for leaching. ^ EFFECT: increasing removal degree of antimony from complex ores and reducing consumption of reagents. ^ 10 cl, 1 dwg, 3 tbl, 6 ex |
