Catalytic composition for the preparation of long-chain alkylaromatic compounds
AssigneeEnichem Augusta Industriale S.r.l.
InventorsStefano Amarilli, Carlo Perego, Giuseppe Bellussi, Giovanni Colombo
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Abstract
A description follows of a catalytic composition comprising a mixture of Y zeolite and pillared clay and a process which uses this catalytic composition for the alkylation of aromatic hydrocarbons by means of long-chain linear olefins. The aromatic alkyl compounds thus obtained are useful for the preparation of biodegradable synthetic detergents.
Claims15
A process for the alkylation of aromatic hydrocarbons, comprising:
- reacting an aromatic hydrocarbon with a linear olefin containing from 8 to 16 carbon atoms or mixtures thereof in a liquid phase under anhydrous conditions at a temperature of 120° C. to 160° C. in the presence of a catalyst comprising a mixture of a Y zeolite and a smectite containing pillars of aluminum oxide, wherein the weight ratio of Y zeolite to smetite with pillars of alumina ranges from 0.1 to 10.
The process of c laim 5, wherein said aromatic hydrocarbon is benzene, toluene, xylenes, ethylbenzene, naphthalene, methylnaphthalenes, ethylnaphthalenes or anthracene.
Dependencies are inferred from the claim text.