Diene production method
US10407362B2 · kind B2 · utility
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3References
12Claims
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Key dates
| Filing date | Feb 16, 2016 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Feb 16, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2529/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for producing diene comprises a step 1 of obtaining a straight chain internal olefin by removing a branched olefin from a raw material including at least the branched olefin and a straight chain olefin; and a step 2 of producing diene from the internal olefin by oxidative dehydrogenation using a first catalyst and a second catalyst, and the first catalyst has a complex oxide including bismuth, molybdenum and oxygen, and the second catalyst includes at least one selected from the group consisting of silica and alumina.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.