Carbonylation of lower alkyl alcohols and their derivatives using metals supported on carbonized polysulfonated divinylbenzene-styrene copolymers
US6452043B1 · kind B1 · utility
7Cited by
14References
21Claims
0Family size
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Key dates
| Filing date | Apr 5, 2000 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Apr 5, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for producing esters, carboxylic acids and mixtures thereof includes contacting, under carbonylation conditions, lower alkyl alcohols, ethers, lower alkyl alcohol derivatives and mixtures thereof and carbon monoxide with a catalyst having a catalytically effective amount a metal selected from iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum, tin and mixtures thereof associated with a carbonized polysulfonated divinylbenzene-styrene copolymer matrix. In a preferred aspect of the invention the method is called out under vapor-phase conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.