Method of production of improved purity light alpha olefines by ogliomerisation of ethylene
US5811619A · kind A · utility
55Cited by
13References
20Claims
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Key dates
| Filing date | Nov 16, 1995 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Nov 16, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/38
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
For obtaining of improved purity of light alpha olefines produced by oligomerization of ethylene, the ethylene is placed in contact with a catalyst obtained by mixture of a zirconium compound with an organic compound selected from the class of acetals and ketals and with a chlorinated or brominated aluminium hydrocarbyl compound, and that the raw oligomerization effluent is firstly treated with an amine, then subjected to vaporization so as to collect the alpha olefines in the vaporized fraction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.