FIELD: chemistry.
SUBSTANCE: invention refers to the field of organic synthesis, namely to the preparation of butyraldehyde from synthesis gas and propylene by the method of oxo process (called also propylene hydroformylation process), particularly to the cobalt regeneration of cobalt sludge. The described method involves the regeneration of the cobalt from cobalt-containing sludge forming in oxo process with usage of cobalt dicarbonyl as catalyst by the way of sludge treatment by the high-boiling organic acid with stirring at elevated temperatures, preferably 190-220°C at the ratio acid: sludge equal 10-20 during no less than 4 hrs.
EFFECT: simplifying of the technology of cobalt sludge regeneration and implementation of the regeneration stage directly on the hydroformylation plant.
3 cl, 3 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR INTRODUCTION AND RECLAMATION OF COBALT DURING HYDROFORMYLATION OF PROPYLENE | 2009 |
|
RU2424224C2 |
| METHOD OF PREPARING HYDROFORMYLATION CATALYSTS | 1998 |
|
RU2131771C1 |
| PROCESS FOR ISOLATING AND RECOVERING COBALT FROM PRODUCTS OF HYDROFORMYLATION OF PROPYLENE | 0 |
|
SU992505A1 |
| METHOD FOR SEPARATING PRODUCTS OF PROPYLENE HYDROFORMYLATION | 2004 |
|
RU2254323C1 |
| METHOD OF PRODUCING BUTYL ALDEHYDES IN PRESENCE OF UNMODIFIED COBALT CATALYST | 2008 |
|
RU2393145C1 |
| PROCESS FOR PREPARING ALDEHYDES AND ALCOHOLS | 0 |
|
SU1097593A1 |
| METHOD OF SYNTHESIS OF ALIPHATIC ACID-C-C OILY-SOLUBLE COBALT SALT | 1992 |
|
RU2072982C1 |
| PROPIONATES, N-PROPANOL AND PROPIONIC ACID PRODUCTION PLANT | 2023 |
|
RU2815838C1 |
| METHOD OF PRODUCING 2-ETHYL HEXANOL | 0 |
|
SU667540A1 |
| METHOD OF DECOBALTIZATION OF PRODUCTS OF HYDRAULIC FORMYLATION OF OLEFINS | 0 |
|
SU1735257A1 |
