METHOD OF ALKYLATION OF BENZENE BY ISOPROPYL ALCOHOL OR A MIXTURE OF ISOPROPYL ALCOHOL AND PROPYLENE

摘要

1. The method of alkylation of benzene with isopropyl alcohol or a mixture of isopropyl alcohol and propylene, which includes the implementation of the specified alkylation reaction under conditions of temperature and pressure corresponding to the completely gas phase of the reactants and at least partially the liquid phase of the reaction products, in the presence of a catalyst system containing zeolite belonging to the MTW family. ! 2. The method according to claim 1, in which zeolite ZSM-12 is used as zeolite MTW. ! 3. The method according to claim 1 or 2, in which a zeolite is used in a form in which the cationic centers present in the zeolite are at least 50% occupied by hydrogen ions. ! 4. The method according to claim 1 or 2, in which the zeolite is used in a form associated with a binder. ! 5. The method according to claim 4, in which the binder is selected from alumina, silicon dioxide, aluminosilicate, titanium dioxide, zirconia or clay. ! 6. The method of alkylation of benzene according to claim 1 or 2, which is carried out at a temperature of from 150 to 230 ° C and a pressure of from 0.1 to 2 MPa (from 1 to 20 bar). ! 7. The method according to claim 6, in which the pressure is less than 1 MPa (10 bar). ! 8. The method of alkylation of benzene according to claim 1 or 2, in which the molar ratio between benzene and isopropyl alcohol or between benzene and a mixture of isopropyl alcohol and propylene is from 2 to 10.! 9. The method of alkylation of benzene according to claim 8, in which the reaction is carried out at a molar ratio between benzene and isopropyl alcohol or between benzene and a mixture of isopropyl alcohol and propylene from 2 to 4.! 10. The method of alkylation of benzene according to claim 1 or 2, in which, when the alkylating mixture consists of isopropyl alcohol and propylene, the reaction is carried out at a molar ratio