Method for producing butadiene
US9790140B2 · kind B2 · utility
3Cited by
5References
5Claims
0Family size
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Key dates
| Filing date | Sep 9, 2014 |
| Grant date | Oct 17, 2017 |
| Priority date | — |
| Expiry date | Sep 9, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2527/173
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for producing butadiene from 2,3-butanediol with high selectivity without using a radioactive substance is disclosed. The method for producing butadiene comprises the step of dehydrating 2,3-butanediol in the presence of a catalyst containing an alkali metal salt of phosphoric acid such as an alkali metal dihydrogen phosphate supported on silica. Preferred examples of the alkali metal herein include K, Rb, and Cs. The catalyst is preferably a catalyst prepared by calcination of the silica to which the alkali metal of phosphoric acid is attached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.