Alkylation catalyst for C4-C5 isoparaffins using at least one C2-C6 olefin

摘要

A catalyst comprising a porous organic or mineral support, preferably silica, and an acidic phase containing B(OSO2CF3)3 and at least one acid selected from the group formed by sulphuric acid (H2SO4) and trifluoromethane sulphonic acid (CF3SO3H), said support having been impregnated with said acidic phase and said support prior to impregnation having a total pore volume of 0.1-0.6 cm3/g, said catalyst being essentially constituted by particles with an average diameter of between 0.1 and 30 mu m, said catalyst being characterized in that said acidic phase contains: between 0.1 and 70% by weight of B(OSO2CF3)3; between 0 and 90% by weight of H2SO4; between 0 and 90% by weight of CF3SO3H. is suitable for the catalytic alkylation of isobutane and/or isopentane in the presence of at least one olefin containing 2 to 6 carbon atoms per molecule, preferably 3 to 6 carbon atoms per molecule.