| 摘要 |
FIELD: precious metals technology. SUBSTANCE: method comprises oxidation of initial aqueous solution, extraction of platinum, palladium, and iridium with tributyl phosphate, and re-extraction. According to invention, initial solution, prior to be oxidized, is evaporated until content of rhodium achieves 60-100 g/l and reextraction is accomplished with hydrochloric acid solution containing 5-10 g/l HCl. EFFECT: enabled recovery of platinum group metals into target products and simplified recovery of platinum group metals from re-extract. 1 tbl, 2 ex |
