Process for linear alpha-olefin production: eliminating wax precipitation
US5523508A · kind A · utility
5Cited by
7References
10Claims
0Family size
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Key dates
| Filing date | Dec 29, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Dec 29, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Linear alpha-olefin formation via oligomerization of ethylene using transition metal catalysis leads to a Schultz-Flory distribution of oligomers. At modest temperatures formation of heavy oligomers which are waxy solids only partly soluble in the LAO product mix causes reactor plugging and curtailing the time of continuous runs. Recycling a portion of a lighter oligomeric fraction obviates this problem and permits runs uninterrupted by solids formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.