Process for obtaining at least one tertiary olefin by decomposition of the corresponding ether
US5171920A · kind A · utility
9Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1991 |
| Grant date | Dec 15, 1992 |
| Priority date | — |
| Expiry date | Apr 9, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2523/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for obtaining a tertiary olefin, e.g. isobutylene in a very pure state by decomposing the corresponding ether, e.g. methyl tert. butyl ether, in the presence of a catalyst constituted by silica, modified by the addition of at least one element or compound of an element preferably chosen from the group constituted by rubidium, cesium, magnesium, calcium, strontium, barium, gallium, lanthanum, cerium, praseodymium, neodymium and uranium and optionally by the addition of at least one element or compound of an element chosen from the group constituted by aluminium, titanium and zirconium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.