Process for trimerization
US4777315A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1987 |
| Grant date | Oct 11, 1988 |
| Priority date | — |
| Expiry date | Jun 1, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the trimerization of an olefin selected from the group consisting of ethylene, propylene, 1-butene, and mixtures thereof comprising passing the olefin and carbon dioxide in contact with a catalyst comprising the reaction product of (i) a chromium compound, which will provide active catalytic species under trimerization conditions, and (ii) a hydrocarbyl aluminum hydrolyzed with about 0.7 to about 1.1 moles of water per mole of aluminum compound wherein the aluminum to chromium mole ratio is in the range of up to about 200 to one and the mole ratio of olefin to carbon dioxide is in the range of about 4 to about 3000 moles of olefin per mole of carbon dioxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.