Catalyst and process for the production of acetic acid
US7915446B2 · kind B2 · utility
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9References
23Claims
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Key dates
| Filing date | Jun 23, 2004 |
| Grant date | Mar 29, 2011 |
| Priority date | — |
| Expiry date | Oct 11, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A catalyst and process for the production of acetic acid by the carbonylation of methanol and/or a reactive derivative thereof. The catalyst system comprises an iridium carbonylation catalyst, methyl iodide co-catalyst, optionally at least one of ruthenium, osmium, rhenium, zinc, gallium, tungsten, cadmium, mercury and indium and at least one non-hydrohalogenoic acid promoter. The non-hydrohalogenoic acid may be an oxoacid, a superacid and/or a heteropolyacid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.