Method for preparing acetic acid and or methyl acetate in the presence of iridium and platinum
US6916952B1 · kind B1 · utility
3Cited by
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54Claims
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Key dates
| Filing date | Oct 29, 1999 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | Oct 29, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention relates to a process for the preparation of acetic acid and/or methyl acetate in the liquid phase by the carbonylation of methanol and/or the isomerization of methyl formate in the presence of water, a solvent, a homogeneous catalyst system comprising iridium and a halogen-containing promoter, and carbon monoxide, wherein said catalyst system also comprises platinum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.