Title:
PRODUCTION OF ALPHA-OLEFIN OLIGOMER
Document Type and Number:
Japanese Patent JP3881418
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain an α-olefin oligomer in high yield and selectivity by oligomerizing an α-olefin in the presence of a specific chromium-based catalyst prepared by a specific method.
SOLUTION: First, a chromium-based catalyst is prepared by reaction between a chromium compound, pyrrole-contg. compound, alkylaluminum compound and halogen-contg. compound in the absence of an α-olefin in hydrocarbon and/or halohydrocarbon solvent (e.g. toluene/cyclohexane) so as to be ≤8×10-3mol/L in the chromium compound concentration of the mixed reaction liquor. Next, in the presence of this chromium-based catalyst, the α-olefin is oligomerized (esp. ethylene trimerization is predominant) at 0-250°C under a pressure of normal to 250kg/cm2 for one min to 20h to obtain the objective α-olefin oligomer such as of 1-hexene.
Inventors:
Nao Urata
Takayuki Qingdao
Sugio Nishimura
Takayuki Qingdao
Sugio Nishimura
Application Number:
JP7900597A
Publication Date:
February 14, 2007
Filing Date:
March 12, 1997
Export Citation:
Assignee:
Mitsubishi Chemical Corporation
International Classes:
C07C2/34; C07C11/107; C08F4/60; C08F4/69; C08F10/00; C10G50/00; (IPC1-7): C07C11/107; C07C2/34; C08F4/69; C08F10/00; C10G50/00
Domestic Patent References:
| JP6239920A |
Other References:
Schmitz-Dumont,O.,Secondary valence forces of pyrrole nitrogen,Ber.,1929年,62B,p.226-234
Pajak, Zdzislaw and Pellan, Francis,Proton nuclear magnetic resonance in complexes of CHX3 with a heteroaromatic donor (πeffect),Compt. Rend.,1960年,251,p.79-81
Chemical Abstracts,vol.103,abs.no.124222(1985)
Chemical Abstracts,vol.60,abs.no.7388c-e(1964)
Pajak, Zdzislaw and Pellan, Francis,Proton nuclear magnetic resonance in complexes of CHX3 with a heteroaromatic donor (πeffect),Compt. Rend.,1960年,251,p.79-81
Chemical Abstracts,vol.103,abs.no.124222(1985)
Chemical Abstracts,vol.60,abs.no.7388c-e(1964)
Attorney, Agent or Firm:
Kazuhiko Okada
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