| abstract |
A process for the dimerization of isobutene, pure or as a mixture with other hydrocarbons, uses as catalyst and as solvent a composition comprising at least one Bronsted acid, denoted HB, dissolved in an ionic liquid medium comprising at least one organic cation. Q + and an A- anion, this composition being such that when A and B are identical, the molar ratio of Bronsted acid to the ionic liquid is less than 1/1. |