CATALYST, METHOD FOR PRODUCTION THEREOF AND PROCESS FOR DEHYDROGENATION OF C-C PARAFFIN HYDROCARBONS INTO OLEFIN HYDROCARBONS USING SAID CATALYST Russian patent published in 2015 - IPC B01J21/12 B01J23/26 B01J21/16 B01J37/04 C07C5/333 

FIELD: chemistry.

SUBSTANCE: described is a method of producing an aluminium-chromium catalyst by mixing an aluminium support with a suspension having clay mineral concentration of 28-37 wt % and with aqueous solutions of chromic acid and potassium alkali. The aluminium-chromium support has specific surface area of not less than 80 m²/g, contains not more than 30 wt % particles with size of less than 45 mcm, not more than 10 wt % particles with size of less than 20 mcm and not more than 1.0 wt % particles with size of more than 140 mcm. The obtained catalyst suspension is then spray dried. Also described is an aluminium-chromium catalyst which includes 12.0-16.0 wt % Cr₂O₃, 8.0-13.0 wt % SiO₂, 2.0-3.6 wt % K₂O and Na₂O or only K₂O, Al₂O₃ - the balance, where content of hexavalent chromium is 1.7-2.2 wt %.

EFFECT: obtaining a catalyst with a uniform composition, high mechanical strength, catalytic activity, selectivity and stability in processes of hydrogenating paraffin hydrocarbons into corresponding olefin hydrocarbons.

4 cl, 1 tbl, 13 ex