US EPA

859386 

Journal Article 

Dealkylation of mesitylene and associated alkylation of benzene and toluene in presence of synthetic alumosilicates 

Topchiev, AV; Mamedaliev, GM; Kovaleva, LS 

1961 

1 

Russian Chemical Bulletin
ISSN: 1066-5285
EISSN: 1573-9171 

10 

5 

801 

English 

10.1007/BF00905951 

https://www.scopus.com/inward/record.uri?eid=2-s2.0-34250603907&doi=10.1007%2fBF00905951&partnerID=40&md5=f31cebdb11abca3a03248be886c97007
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1.Catalytic conversion of mesitylene mixed with benzene was studied. Under conditions of an elevated pressure of 1015 atm. and a temperature of 480, dealkylation of mesitylene and associated alkylation of benzene occurs mainly, with formation of 1822% toluene and ~ 17% xylenes.2.As a result of single-stage treatment of a mixture of mesitylene and toluene over an alumosilicate, 3032% of a xylene fraction is formed, consisting of 4550% m-xylene, ~ 2025% p-xylene, and ~ 30% o-xylene. Presence of toluene and benzene depresses mesitylene dismutation practically entirely.3.On catalytic treatment of mesitylene in presence of alumosilicates, disproportionation of methyl groups occurs mainly, with formation of xylenes and tetramethylbenzenes. In this case, partial hydrocracking of mesitylene methyl groups occurs, with formation of a small amount of toluene, methane and its homologs.