| abstract |
A method for separating isobutene from a valid production process and C 4 hydrocarbon mixture diisobutene 1-butene for the production. SOLUTION: Isobutene is oligomerized in a liquid phase using an acidic ion exchange resin having a sulfonic acid group in which a part of protons of an acidic ion exchanger is exchanged with metal ions. Moreover, C 4 hydrocarbon mixture is reacted, separated by distillation of 1-butene from the reaction products using acidic ion-exchange resin. [Selection figure] None |