FIELD: petrochemical processes.
SUBSTANCE: aromatic feedstock is alkylated at elevated temperature with α-olefins (C10-C18 or C10-C18-fraction) in presence of liquid vat complex containing toluene, aluminum chloride, and hydrogen chloride. Aromatic feedstock is still residue from process of isolation of monolkylbenzenes from products of alkylation of benzene with linear C10-C14-olefins in presence of hydrogen fluoride as alkylation agent. Process is carried out at following weight ratio of components: still residue/α-olefins/catalyst complex = 1:(0.1-0.3):(0.05-0.09).
EFFECT: improved quality of desired product and utilized still residue from another process.
7 cl, 1 tbl, 2 ex
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