Methods to rejuvenate a deactivated hydroformylation catalyst solution
US10792652B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Nov 6, 2017 |
| Grant date | Oct 6, 2020 |
| Priority date | — |
| Expiry date | Nov 6, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed herein are methods to rejuvenate a deactivated hydroformylation catalyst solution wherein the solution comprises rhodium, polydentate phosphine ligands, and polydentate phosphine ligand degradation products. In one embodiment, such methods comprise adding a peroxide to the deactivated hydroformylation catalyst solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.