Catalytic composition for carbonylation including iridium and pyridine polymers
US6458995B1 · kind B1 · utility
6Cited by
13References
5Claims
0Family size
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Key dates
| Filing date | Mar 31, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Mar 31, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/582
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improvement to methanol carbonylation processes utilizing a homogeneous iridium catalyst system comprises adding a rate-promoting amount of an insoluble pyridine ring-containing polymer. Typically, polyvinylpyridine is added to the reactor in amounts of up to about 2 wt. percent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.