CATALYST OF ALKYLMERCAPTANE SYNTHESIS AND METHOD OF PRODUCTION OF SUCH CATALYST Russian patent published in 2009 - IPC B01J23/30 B01J23/04 B01J37/02 C07C319/08 

FIELD: chemistry.

SUBSTANCE: invention relates to caesium and tungsten-containing oxide catalyst of alkylmercaptane synthesis, method of its production and method of obtaining alkylmercaptanes with its application. Described is catalyst including oxide composition, which corresponds to general formula Cs_xWO_y, in which x represents number from 0.8 to less than 2, and y represents number from 3.4 to less than 4. Described is method of production of catalyst which contains oxide compounds of caesium and tungsten, which lies in the following: a) carriers or substance-carrier, consisting of aluminium oxide is impregnated with water solution containing soluble caesium and tungsten compound with required molar ratio of caesium and tungsten given above, b) obtained impregnated formed carriers or obtained impregnated highly-dispersive aluminium oxide (preliminary prepared catalyst) are subjected to preliminary drying at room temperature, c) if necessary they are subjected to drying at temperature within the range from 100 to 200°C in order to remove residual moisture, d) are subjected to final burning during 2-10 hours at temperature within the range from 300 to 600°C and e) applied catalyst or impregnated highly-dispersive aluminium oxide is obtained, with content of promoter of general composition Cs_xWO_y, where x and y have given above values, in amount from 15 to 45 wt %, preferably from 20 to 36 wt %, after which f) impregnated highly-dispersive aluminium oxide is suspended with addition of known auxiliary substances and applied on core-carrier from inert material or is extruded and pressed. Also described is method of obtaining alkylmercaptane by interaction of alkanols with hydrogen sulphide in presence of catalyst described above.

EFFECT: increase of catalyst activity and selectivity.

14 cl, 2 tbl, 10 ex