| abstract |
The invention relates to a catalyst comprising silica and an acid phase comprising sulfuric acid, which impregnates said silica, its preparation and its use in catalytic alkylation of isobutane and / or isopentane in the presence of at least one olefin comprising from 3 to 6 carbon atoms per molecule, said catalyst being characterized in that it essentially consists of particles with an average diameter of between 0.1 and 30 μm, and in that the total pore volume of silica, before its impregnation with said acid phase, is between 0.1 and 0.6 cm³ / g. |