Transformations of the individual xylenes in presence of a nickel-alumina catalyst and of hydrogen under pressure | Health & Environmental Research Online (HERO)

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HERO ID

8702718

Reference Type

Journal Article

Title

Transformations of the individual xylenes in presence of a nickel-alumina catalyst and of hydrogen under pressure

Author(s)

Shuikin, NI; Berdnikova, NG; Kashkovskaya, LK

Year

1959

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Journal

Bulletin of the Academy of Sciences of the USSR. Division of Chemical Science
ISSN: 0568-5230

Volume

Issue

Page Numbers

282-286

Language

English

DOI

10.1007/BF00917375

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-34250588822&doi=10.1007%2fBF00917375&partnerID=40&md5=0ba274c7c62459cb09018548a7bf2034
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Abstract

1. An investigation was made into the catalytic transformations of m-, p-, and o-xylenes at temperatures ranging from 300° to 460° and hydrogen pressures of 25 and 50 atm in presence of nickel-alumina catalysts containing 10%, 20%, and 30% of nickel. 2. The main reaction in the transformations of the isomeric xylenes at 460° is the hydrogenolysis of methyl groups with the formation of toluene and benzene. 3. At 300° and 400° demethylation is accompanied by hydrogenation of the benzene ring with formation of dimethylcyclohexanes, methylcyclohexane, and cyclohexane. 1960 Consultants Bureau Inc.