Hydroformylation method involving a cobalt-based catalyst in a non-aqueous ionic liquid
US7781621B2 · kind B2 · utility
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38Claims
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Key dates
| Filing date | Jun 22, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Jun 22, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In a method for hydroformylating olefinically unsaturated compounds by means of a cobalt-based catalyst, used in a non-aqueous ionic liquid, liquid at a temperature below 100° C. and comprising at least one cation Q+ and at least one anion A−, said method comprising at least a stage of reaction under pressure and at least a stage of separation of the phases by decantation, recycling of the catalyst is improved: At the end of this process, the organic phase containing the reaction products can be recovered and the ionic liquid phase containing the catalyst can be recycled to the hydroformylation reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.