Process for the production of dienes
US10196326B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2016 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Feb 22, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2521/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process for the production of a diene, preferably a conjugated diene, more preferably 1,3-butadiene, comprising the dehydration of at least one alkenol in the presence of at least one catalytic material comprising at least one acid catalyst based on silica (SiO2) and alumina (AI2O3), preferably a silica-alumina (SiO2-AI2O3), said catalyst having a content of alumina (AI2O3) lower than or equal to 12% by weight, preferably ranging from 0.1% by weight to 10% by weight, with respect to the total weight of the catalyst. Preferably, said alkenol can be obtained directly from biosynthesis processes, or through the catalytic dehydration of at least one diol, preferably a butanediol, more preferably 1,3-butanediol, even more preferably bio-1,3-butanediol, deriving from biosynthesis processes. Preferably, said 1,3-butadiene is bio-1,3-butadiene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.