| 摘要 |
PURPOSE:To perfectly reactivate the catalyst in mild conditions by using a method for processing the titled Rh and phosphine type catalyst lowered in activity with boron hydride followed by removal of basic substances. CONSTITUTION:The Rh and phosphine type hydroformylation catalyst soln. lowered in activity is processed with boron hydride. Basic substances are usually produced in the system by this treatment, and becomes a factor again deactivating the catalyst, so the treated soln. of the catalyst is washed with water till the washing water rises to 7 pH to remove said basic substances. The washed catalytic soln. is sent to the hydroformylation reactor, and this catalyst is perfectly reactivated and it can be used for a long term. |
