To provide a method for producing octene, which does not use, as a raw material in octene synthesis, a C4 fraction which needs a purification step for removing a nitrogen-containing, oxygen-containing or sulfur-containing polar compound that is dimerization poison and catalyst poison.
The method includes: dimerizing ethylene by use of a titanium-based catalyst or a catalyst system composed of a nickel compound and an aluminum compound to form butene; and dimerizing the butene in the presence of a catalyst system including a nickel complex or a mixture of the nickel complex to form octene. The ethylene dimerizing step and the butene dimerizing step are performed without performing purification step in between, and n-butene obtained by the dimerizing is free from isobutene and butane.
HUGUES FRANCOIS
MAGNA LIONEL
BREUIL PIERRE-ALAIN
| JP2003225571A | 2003-08-12 | |||
| JPS6094923A | 1985-05-28 | |||
| JPH1045637A | 1998-02-17 | |||
| JP2010030902A | 2010-02-12 | |||
| JP2011511036A | 2011-04-07 |
| EP0221206A1 | 1987-05-13 |
Einosuke Kishimoto
Matsumura Naoto