| abstract |
(57) [Summary] [Object] To provide a method for removing a catalyst component from a reaction product liquid of an α-olefin low polymerization reaction using a chromium-based catalyst. A combination of at least (a) a chromium compound, (b) a nitrogen-containing compound selected from the group consisting of amines, amides and imides, and (c) an alkylaluminum compound, or (d) a halogen. Using a catalyst in which the compounds containing are combined, low polymerization of α-olefin is carried out in a solvent, and the reaction product liquid is brought into contact with a solid base insoluble therein to remove the catalyst component in the liquid. [Effect] The catalyst can be efficiently removed by a simple operation. |