Carbonylation process and catalyst system therefor
US10335774B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Mar 24, 2016 |
| Grant date | Jul 2, 2019 |
| Priority date | — |
| Expiry date | Mar 24, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2229/37
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst system for a liquid phase carbonylation reaction comprising a homogeneous acid catalyst component and a porous solid component, in particular for use in the formation of glycolic acid by carbonylation of formaldehyde. The homogeneous acid catalyst component is, for instance, sulphuric acid while the solid component can be unfunctionalized silica. A process for the carbonylation of an aldehyde to form a carboxylic′ acid or derivative thereof is also described. The process comprises the steps of contacting the catalyst with carbon monoxide, water and the aldehyde.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.