Process for recovering and reactivating catalysts that contain cobalt used in the conversion of olefins with carbon monoxide and alkanols

摘要

A process for recovering and reactivating at derUmsetzung of olefins with carbon monoxide and alkanols inserted catalysts consisting of a cobalt compound and pyridine and / or a non-ortho substituted alkylpyridine as promoter, which comprises treating the reaction mixture with an oxygen containing gas, the unreacted alkanol and olefin, promoter and the reaction products removed by distillation, to receive the thereby resulting distillation residue in pyridine and / or a non-ortho-substituted alkylpyridine and treats the suspension thus obtained with a mixture of carbon monoxide and hydrogen at a temperature of 100 to 250 ° C and a pressure of at least 50 bar.