Dehydration of 2-(4 -ethylbenzoyl)-benzoic acid to 2-ethylanthra-quinone over Hβ zeolite modified with organic acids

Lingjuan Zhai, Min Liu, Xiangmei Dong, Chunshan Song, Xinwen Guo

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Hβ zeolite was modified with citric acid, tartaric acid, malic acid, propanedioic acid, lactic acid, acetic acid, and oxalic acid, respectively, and characterized by X-ray diffraction, X-ray fluorescence, Fourier transform infrared spectrometer, nuclear magnetic resonance, and temperature-programmed desorption. The catalytic performance of the samples in the dehydration of 2-(4'-ethylbenzoyl)-benzoic acid (BEA) to 2-cthylanthraquinone (2-EAQ) was studied. The results showed that Hβ maintained the BEA topological structure after being modified by organic acids, but their relative crystallinity and amount of acid groups decreased, and dealumination could be clearly observed after the modification. Hβ zeolites modified with citric acid, tartaric acid, malic acid, and propanedioic acid showed great catalytic performance in the dehydration reaction of BEA to 2-EAQ. The conversion of BEA and the selectivity for 2-EAQ were both up to 95.0%.

Original languageEnglish (US)
Pages (from-to)9-13
Number of pages5
JournalCuihua Xuebao / Chinese Journal of Catalysis
Volume30
Issue number1
DOIs
StatePublished - Jan 2009

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

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