Process for linear alpha-olefin production
US5962761A · kind A · utility
4Cited by
7References
12Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 15, 1998 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Oct 15, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/54
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the continuous oligomerization of ethylene to produce linear alpha olefins by oligomerizing ethylene in a polar phase comprising a solution of transition metal catalyst system at oligomerization conditions including a temperature and pressure greater than the critical temperature and pressure of ethylene. The resulting hydrocarbon phase containing oligomers and unreacted ethylene is subjected to physical treatment which tends to render the ethylene a nonsolvent for oligomers and thereby produce a liquid stream rich in unreacted ethylene which may be recycled to the oligomerization reaction zone by pumping.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.