METHOD OF HYDROGENATING BENZENE, MIXTURE OF BENZENE AND TOLUENE, MIXTURE OF BENZENE AND XYLENE OR ISOMERIC MIXTURE OF XYLENE OR MIXTURE OF BENZENE, TOLUENE AND XYLENE OR ISOMERIC MIXTURE OF XYLENE, CONTAINING SULPHUR AROMATIC COMPOUNDS AND DESULPHONATION METHOD THEREOF Russian patent published in 2010 - IPC C07C5/10 C07C13/18 C07C7/163 

FIELD: chemistry.

SUBSTANCE: invention relates to versions of a method of hydrogenating benzene, mixture of benzene and toluene, mixture of benzene and xylene or isomeric mixture of xylene or mixture of benzene, toluene and xylene or isomeric mixture of xylene containing sulphur aromatic compounds, in one of which at the first step, in the presence of hydrogen if necessary, content of sulphur aromatic compounds is reduced in the presence of a desulphonation agent containing copper and zinc in atomic ratio between 1:0.3 and 1:10 (step a), and at the second step benzene, mixture of benzene and toluene, mixture of benzene and xylene or isomeric mixture of xylene or mixture of benzene, toluene and xylene or isomeric mixture of xylene is hydrogenated in the presence of a ruthenium catalyst containing 0.01-30 wt % ruthenium in terms of total weight of the catalyst deposited on a support, in the presence of hydrogen (step b). The invention also relates to a desulphonation method using the same desulphonation agent.

EFFECT: use of present method enables to obtain alicyclic compounds or their mixture with high selectivity and output.

24 cl, 3 ex, 14 tbl