Toray Industries, Inc.

Eiichi Minomiya

Jiro Nakatani

Kuniyuki Tada

Tetsuya Kato

Satoru Miyata

Masatoshi Watanabe

Kazuyoshi Iwayama

Takehisa Inoue

Masahiro Inohara

Method for producing aromatic compounds having alkyl group with at least three carbon atoms

Process for acyloxylating side chains of alkyl-substituted aromatic compounds and catalysts used therefor

A method for isomerizing a halogenated ethylbenzene characterized by bringing the same into contact with an acidic zeolite containing at least one metal selected among metals of Groups 7 to 11; and a method of efficiently isolating a m-halogenated ethylbenzene from a mixture of halogenated ethylbenzene isomers by adsorption using a specific zeolite X or Y as the adsorbent. The isomerization method enables a halogenated ethylbenzene to be efficiently isomerized with the zeolite catalyst. The separation method enables m-chloroethylbenzene to be efficiently separated from a mixture of chloroethylbenzene isomers by using a specific zeolite as the adsorbent.

Method for isomerizing halogenated ethylbenzene and method for separating halogenated ethylbenzene isomers

Ethylbenzene can be substantially hydrode-ethylated to benzene with a minimized loss of xylene by placing a C.sub.8 aromatic hydrocarbon mixture containing ethylbenzene and xylene in the presence of hydrogen in contact with a catalyst comprising 0.6 to 20.0 parts by weight of rhenium, 100 parts by weight of an acid type of a zeolite having a main cavity inlet composed of a 10-membered oxygen ring and 100 to 900 parts by weight of alumina, which has been subjected to sulfiding.

Process for conversion of ethylbenzene in C.sub.8 aromatic hydrocarbon

Provided is a process for isomerizing a halogenated toluene using an acid form of zeolite as a catalyst.

Process for the isomerization of a halogenated toluene

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Aichi, Japan

Eiichi Minomiya