Production of acetic acid with enhanced catalyst stability
US8916727B2 · kind B2 · utility
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45Claims
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Key dates
| Filing date | Dec 14, 2012 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Dec 14, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Processes for the production of acetic acid by carbonylation of methanol and reactive derivatives thereof in a liquid phase reaction medium, wherein the reaction medium comprises a finite amount of water, a homogeneous catalyst, an alkyl halide promoter, and a catalyst stabilizer/co-promoter comprising a dissymmetric phosphonium cation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.