| 摘要 |
The invention relates to a method for producing an aqueous cobalt sulphate solution having a pH value of at least 4, characterised in that (a) metallic cobalt dissolves in aqueous sulfuric acid in an atmosphere which is low in oxygen, hydrogen or inert gas, and (b) the thus produced acidic cobalt sulphate solution is treated with oxygen, oxygen-containing gas or a substance which can eliminate the oxygen in an aqueous medium. |
