| 摘要 |
FIELD: cobalt and nickel recovery from ores. ^ SUBSTANCE: claimed method includes ore granulation with sulfuric acid at stoichiometric ratio. Granules are baked at 650-7000C for 2.5-3.0 h up to soluble iron content of 1.0-3.0 % followed by leaching with water. Before baking granules are sulfated at 200-2500C for 1 h. ^ EFFECT: high yield metal recovery; decreased sulfuric acid consumption; granulated sulfated product without decomposition during leaching with water. ^ 3 cl, 3 tbl, 4 ex |
