METHOD OF PREPARING CATALYST FOR DEHYDROGENATION OF PARAFFIN HYDROCARBONS Russian patent published in 2010 - IPC B01J23/26 B01J23/04 B01J21/04 B01J37/02 B01J37/08 C07C5/333 

FIELD: chemistry.

SUBSTANCE: invention relates to the process of obtaining olefin or diolefin hydrocarbons C₃-C₄ through catalytic dehydrogenation of corresponding paraffin hydrocarbons, and specifically to preparation of a dehydrogenation catalyst, and can be used in chemical and petrochemical industry. The method of preparing a catalyst for dehydrogenating paraffin hydrocarbons C₃-C₄ by impregnating the γ-Al₂O₃ catalyst support with a solution of Cr and K salts with subsequent drying and tempering at high temperature is distinguished by that, before impregnation with salt solutions, the γ-Al₂O₃ catalyst support undergoes high temperature treatment with hydrogen at 300-500°C and impregnation of the support with the metal salts is carried out in 24-65 hours.

EFFECT: obtained catalyst surpasses known catalysts on activity and selectivity.

9 ex