Patent ID: 9314784
Filing Date: 2016-04-19
CPC Classification: B01J,C07C,Y02P

Claim Text:
1. A process for producing an olefin dimer comprising: carrying out a dimerization reaction of an olefin in the presence of a solid phosphoric acid catalyst in which phosphoric acid is supported on inorganic support particles at a reaction temperature of 55 to 300° C. by introducing into a reactor an olefin-containing raw material containing water in an amount of 10 ppm by mass or more and less than the saturated water content at the reaction temperature, thereby preparing a reaction product containing an olefin dimer, washing the reaction product at a temperature of 80° C. or higher using an alkaline substance-containing water adjusted to pH 8 to 13, and washing the reaction product after the alkaline washing with water at a temperature of 0 to 110° C. to remove oxygen-containing compounds selected from an alcohol, a ketone, an ether, and an ester having 3 to 7 carbon atoms, thereby preparing an olefin dimer.