Method for reducing heavy end formation and catalyst loss in a hydroformylation process
US11981629B2 · kind B2 · utility
0Cited by
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20Claims
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Key dates
| Filing date | Jun 23, 2020 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Mar 5, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F15/0073
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention refers to a method for reducing heavy end formation and catalyst loss in a continuous hydroformylation process, where an olefin or an olefin mixture is reacted with carbon monoxide and hydrogen in a reactor assembly (1) in the presence of a rhodium complex catalyst, comprising at least one organobisphosphite ligand, in order to produce an aldehyde. Said method comprising the addition of an epoxide to the reaction mixture and the continuous or discontinuous removal of early heavy ends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.