Process and catalyst for conversion of acetic acid to isobutene and propylene
US9580365B2 · kind B2 · utility
1Cited by
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12Claims
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Key dates
| Filing date | Apr 10, 2015 |
| Grant date | Feb 28, 2017 |
| Priority date | — |
| Expiry date | May 28, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2523/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process is disclosed for converting acetic acid to propylene and isobutene as the principal hydrocarbon products made, in the presence of a catalyst and in the further presence of hydrogen. In certain embodiments, a ZnxZryOz mixed oxide catalyst is used for carrying out a gas phase process, and propylene is produced preferentially to isobutene by using at least a certain amount of hydrogen in the process. In some embodiments, a ZnxZryOz mixed oxide catalyst made by an incipient wetness impregnation method is used and is indicated to be very stable for carrying out the conversion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.