FIELD: petrochemical processes. SUBSTANCE: alkanes with 4-6 carbon atoms are alkylated by C3-C5-alkyl halides on solid acid catalyst at alkanes- to-alkyl halides ratio between 5 and 50, said catalyst containing refractory inorganic oxide, product of reaction of first metal halide with bound surface hydroxyl groups of indicated oxide, second metal cation, and zero valent third metal. EFFECT: increased lifetime of catalyst and decreased associated oligomerization of olefins. 6 cl, 1 dwg, 1 tbl, 2 ex
