FIELD: petrochemical processes. SUBSTANCE: aromatic hydrocarbons (diphenyl and naphthalene) are alkylated with industrial mixture of synthetic alpha-olefins consisting of C8-C10-fraction or C12-C14-fraction or their mixture at elevated temperature (50-60 C) in presence of aluminum chloride, weight ratio of aromatic hydrocarbon to alkylation agent being 1: (2-3). EFFECT: simplified technology and increased economical efficiency. 3 cl, 4 ex
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