Selective N,N-methylation of aniline over cocrystallized zeolites RHO and zeolite X (FAU) and over Linde type L (Sr,K-LTL)

L. J. Garces, V. D. Makwana, B. Hincapie, A. Sacco, S. L. Suib

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Abstract

Alkylation of aniline (PhNH2) with methanol (MeOH) over cocrystallized zeolite RHO-zeolite X (FAU) and over zeolite Linde type L (Sr,K-LTL) as catalysts has been studied. Cocrystallized zeolite RHO-zeolite X (FAU) favors the formation of N,N-dimethylaniline (NNDMA) with high selectivity > 90%, having an advantage over pure zeolite X (FAU) of staying active even after 10 h of reaction. Activity of cocrystallized RHO-zeolite X (FAU) is higher than that for Sr,K-LTL in terms of the production of N,N-dimethylaniline.

Original languageEnglish
Pages (from-to)107-116
Number of pages10
JournalJournal of Catalysis
Volume217
Issue number1
DOIs
StatePublished - Jul 1 2003

Keywords

  • Aniline
  • Cocrystallized zeolites
  • Methylation
  • N,N-Dimethylaniline
  • Zeolite LTL
  • Zeolite RHO
  • Zeolite X

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