Process for acetic acid preparation and heterogenous catalyst for same
US5155261A · kind A · utility
25Cited by
2References
20Claims
0Family size
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Key dates
| Filing date | Nov 6, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Nov 6, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/584
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved Monsanto-type process for acetic acid preparation and a heterogeneous-supported catalyst for accomplishing the same, comprising reacting methanol with carbon monoxide under pressure of about 65-80 Bar and temperature of about 170.degree.-200.degree. C. in the presence of methyl iodide and a catalyst comprising an insoluble polymer having pendant free base, N-oxide or quaternized pyridine groups supporting a rhodium species loaded to less than about 10 weight percent (expressed as metal) of the polymer component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.