METHOD FOR PREPARING LINEAR ALKYLBENZENE USING CATALYST OF MICRO-MESOPOROUS STRUCTURE Russian patent published in 2007 - IPC C07C2/66 B01J29/00 

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention proposes a method for synthesis of linear alkylbenzenes involving the alkylation reaction of benzene with (C₈-C₂₀)-alpha-olefin at temperature 100-450⁰C and under pressure 0.2-5 MPa on catalyst of micro-mesoporous structure with part of micropores from 0.03 to 0.90 and part of mesopores from 0.97 to 0.10. Catalyst comprises microporous crystalline silicates of zeolite structure and having the composition of anionic carcass of the formula: T₂O₃(10-1000)SiO₂ wherein T means elements chosen from group consisting of p-element of group III or d-elements of groups IV-VIII, or their mixtures. Catalyst of micro-mesoporous structure comprises, in particular, microporous crystalline silicate of zeolite structure of the following type: FAU, LTL, FER, MAZ, MOR, BEA, MFI, MEL and MTW. Invention provides increasing yield of linear alkylbenzenes and with high selectivity by sum of linear alkylbenzenes and 2-phenyl isomer and in retaining catalytic stability of catalyst.

EFFECT: improved method of synthesis.

6 cl, 2 tbl, 2 dwg, 29 ex