Process for producing carboxylic acids
US5391821A · kind A · utility
16Cited by
8References
99Claims
0Family size
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Key dates
| Filing date | Apr 20, 1994 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Apr 20, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Carboxylic acids are produced in the liquid phase carbonylation reaction from an alcohol or its derivative and carbon monoxide in the presence of a catalyst system containing a rhodium component and an alkyl halide and water, adding an iodide salt to the rhodium/alkyl halide catalyst system so as to maintain the iodine ion concentration in the carbonylation reaction solution at 0.3 mol/l or higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.