FIELD: chemistry.
SUBSTANCE: described is a continuous method for monoalkylation of an aromatic compound of an aliphatic raw material containing an aliphatic olefin with 8-18 carbon atoms per molecule, to obtain a linear arylalkane without excess skeletal isomerisation of the alkane group of the arylalkane, which is carried out using at least 3 reaction zones connected in series, each containing a solid alkylation catalyst, cooling the output stream between the reaction zones, each of said reaction zones being provided with a portion of fresh aliphatic raw material such that the Reaction Zone Delta T in each reaction zone is less than 15°C. Molar ratio of the total amount of the aromatic compound to the olefin is less than 20:1.
EFFECT: alkylation product has the desirable linearity and low amount of dimmers, dealkylated compounds and diaryl compounds even when low molar ratio of aromatic compound to olefin is used.
10 cl, 2 dwg
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