CATALYST FOR ISOMERIZATION OF C-C-ALKANE HYDROCARBONS AND METHOD OF ISOMERIZATION OF AlCl-ALKANE HYDROCARBONS Russian patent published in 1994 - IPC

FIELD: organic chemistry. SUBSTANCE: catalyst contains, mass % : Pt 0.129-0242, aluminium chloride having empirical formula AlCl₃ 5.5-5.8, aluminium oxide having empirical formula μm as fire-proof carrier - the rest. Platinum is displaced in surface layer of catalyst, its surface concentration is at least 1.5 times that in control area of catalyst. Depth of surface layer is 150 C₄-C₇, diameter of central area being 50% of volume diameter of catalyst's particle. Isomerization of 5 h^-1-alkane hydrocarbons is carried out at pressure 1-100 atm, temperature 40-250 is preferable. Molar ratio of hydrogen and hydrocarbons is (0.01-5): 1. Molar ratio of hydrogen and hydrocarbons in isomerization product is 0.05-: 1. It's preferable to conduct process in liquid-phase regime and to purify origin products against sulfur- and oxygen-containing compounds. Chlorocarbon is added into origin material as promoter, its quantity being 30-300 ppm. EFFECT: improves isomerization process. 8 cl, 1 dwg