CATALYST, METHOD FOR PREPARATION THEREOF, AND A METHOD OF ISOMERIZATION OF N-BUTANE USING THIS CATALYST Russian patent published in 2005 - IPC

FIELD: petrochemical process catalysts.

SUBSTANCE: invention relates to catalytic methods of isomerizing n-butane into isobutane and provides catalyst constituted by catalytic complex of general formula Me_xO_y*aAn^-*bC_nX_mH_2n+2-m, where Me represents group III and IV metal, x=1-2, y=2-3, An^- oxygen-containing acid anion, a=0.01-0.2, b=0.01-0.1; C_nX_mH_2n+2-m is polyhalogenated hydrocarbon wherein X is halogen selected from a series including F, Cl, Br, I, or any combination thereof, n=1-10, m=1-22, dispersed on porous carrier with average pore radius at least 500 nm and containing hydrogenation component. Method of preparing this catalyst is also disclosed wherein above-indicated catalytic complex is synthesized from polyhalogenated hydrocarbon C_nX_mH_2n+2-m wherein X, n, and m are defined above, group III and IV metal oxide, and oxygen-containing acid anion, and dispersed on porous carrier with average pore radius at least 500 nm, hydrogenation component being introduced either preliminarily into carrier or together with catalytic complex. Process of isomerizing n-butane into isobutane utilizing above-defined catalyst is also described.

EFFECT: lowered butane isomerization process temperature and pressure and increased productivity of catalyst.

13 cl, 1 tbl, 24 ex