| abstract |
An object of the present invention is to provide a method for producing a butene oligomer having no odor and having excellent oxidation stability. SOLUTION: After a butane-butene mixed fraction is polymerized in the presence of an acid catalyst to produce an oligomer, (1) a required fraction is separated by distillation, followed by hydrogenation treatment and deodorization treatment. Alternatively, (2) after the hydrogenation treatment, a required fraction is fractionated by distillation and then deodorized to produce a butene oligomer. [Selection diagram] None |