Recovery of high-boiling aldehydes from rhodium-catalyzed hydroformylation processes
US5138101A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 19, 1991 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Jul 19, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/50
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Disclosed is an extraction process for the recovery of high-boiling aldehydes produced by the rhodium-catalyzed hydroformylation of olefins in the presence of a hydroformylation solvent. The extraction process involves intimately contacting a hydroformylation product solution comprising (i) a high-boiling aldehyde, (ii) hydroformylation catalyst components comprising rhodium and an organophosphine compound, and (iii) a hydroformylation solvent with an extraction solution comprising a primary alkanol and water to form a 2-phase mixture. The phases are separated to obtain a hydroformylation solvent phase containing catalyst components and an alkanol/water phase containing the high-boiling aldehyde.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.