| 摘要 |
<p>The invention relates to a process for the recovery of vanadium from a composition containing this element, according to which an aqueous suspension of the said composition is placed in contact with gaseous sulphur dioxide and then, after phase separation, an aqueous solution of vanadium, constituting the output, is recovered, the said process being characterised in that a gas mixture comprising sulphur dioxide and oxygen is employed. …<??>The invention can also be applied to the recovery of the vanadium present in spent catalysts, for the manufacture of new catalysts.</p> |
