METHOD OF PRODUCTION OF PHENYLALKENES WITH USAGE OF THE ADSORPTIVE SEPARATION AND THE COMPOSITION PRODUCED ON THEIR BASIS Russian patent published in 2007 - IPC C07C2/66 C07C7/13 C07C5/333 C10M105/06 

FIELD: chemical industry; the methods of production of the phenylalkenes.

SUBSTANCE: the invention is pertaining to the production process of the catalytic alkylation of the benzol or its derivatives (the toluene and the ethylbenzene) by the higher monoolefins with production of the phenylalkanes. The method provides for the following stages: a) feeding the stream of the feed stock containing the first acyclic paraffin C₈-C₂₈ having 2 or 3 primary atoms of carbon with the first concentration and at least the second acyclic paraffin into the adsorption area for realization of the selective adsorption by the silicalite; introduction in the contact with the stream of the desorbent, extractions of the adsorption extract from the area of adsorption with the second concentration of the first acyclic paraffin, which exceeds the first concentration; b) feeding a part of the extract of the adsorption into the area of dehydrogenation and extraction from the area of dehydrogenation of the stream of the products containing acyclic monoolefin having 2 or 3 primary atoms of carbon; c) feeding the feed stock containing the phenyl compound and a part of the stream of the products of dehydrogenation, containing the acyclic monoolefin into the area of alkylation at presence of the catalytic agent of the alkylation with production of phenylalkane containing one_{С8-С28 aliphatic alkyl group; d) extraction of the phenylalkane from the area of the alkylation. The composition of the modified alkylbenzene includes alkylbenzene, where the link of the modified alkylbenzene is produced by the above described method, and it is intended for usage as the lubrication substance, or as the dope to the washing substance. The technical result of the invention is the upgraded technological process of alkylation of the phenyl compound with the help of the easily ramified monoolefins.}

EFFECT: the invention ensures the upgraded technological process of alkylation of the phenyl compound with the help of the easily ramified monoolefins.

9 cl, 3 ex, 8 tbl, 2 dwg