Process for regenerating a deactivated rhodium hydroformylation catalyst system
US5290743A · kind A · utility
18Cited by
11References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 22, 1993 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Mar 22, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for regenerating a deactivated hydroformylation catalyst system that contains a rhodium hydridocarbonyl tris(trisubstituted phosphine) complex, a trisubstituted phosphine, and a diphosphinoalkane, is disclosed. The process involves oxidation of the catalyst system, removal of the phosphine oxidation products, and regeneration of the catalyst system by syngas treatment, aqueous extraction, and addition of phosphine ligands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.