Process for producing low polymer of α-olefin

Details Process for producing low polymer of α-olefin Process for producing low polymer of α-olefin

2007-01-30

2007-01-30

Dang, Thuan D (Department: 1764)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By addition of entire unsaturated molecules, e.g.,...

C585S510000, C585S901000

Reexamination Certificate

active

10487728

ABSTRACT:
A process for producing an α-olefin oligomer by oligomerization of an α-olefin in a presence of a Ziegler-based catalyst, the process comprising introducing at least a portion of a reaction product which is taken out of a reactor and has a temperature of 115° C. or higher into an external heat exchanger, cooling the introduced reaction product, maintaining an oligomerization solution taken out of the external heat exchanger at a temperature of 110° C. or higher and returning at least a portion of the oligomerization solution to the reactor. In the production of an α-olefin oligomer, precipitation and adhesion of polymers at the inside of manufacturing apparatuses such as the external heat exchanger and troubles caused thereby can be prevented and a stable continuous operation can be continued for a long time.

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