| 摘要 |
<p>1. A process for working-up a cobalt-containing distillation bottoms product which has arisen in the working-up by distillation of a reaction mixture obtained by reaction of an olefin with carbon monoxide and water or an alkanol in the presence of a cobalt-containing catalyst and a promoter and subsequently oxidised, characterised in that the cobalt-containing residue arising as distillation bottoms product is treated with a carboxylic acid of 1 to 4 carbon atoms and water, the resulting phases are separated, the cobalt is recovered from the carboxylic acid/water phase in the form of the corresponding carboxylate and that salt is optionally converted into another carboxylate.</p> |
