Olefin production
US6455648B1 · kind B1 · utility
40Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1999 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Dec 29, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is provided which comprises preparing an olefin oligomerization or trimerization catalyst system and producing olefins in the presence of the olefin oligomerization or trimerization catalyst system and a solvent, wherein said catalyst system preparation comprises the steps of first contacting a chromium source and a pyrrole-containing compound to form a chromium/pyrrole mixture; second, contacting said chromium/pyrrole mixture with a metal alkyl to form a catalyst system; and then contacting said catalyst system with an alpha-olefin, preferably ethylene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.