Codoped Phosphotungstate as an Efficient Heterogeneous Catalyst for the Synthesis of n-Butyl Oleate | Zendy

Xi Zhou | Zendy; Peng He | Zendy; Chao Zhang | Zendy

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Codoped Phosphotungstate as an Efficient Heterogeneous Catalyst for the Synthesis of n-Butyl Oleate

Author(s) -

Xi Zhou,

Peng He,

Chao Zhang

Publication year - 2020

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.0c00693

Subject(s) - catalysis , chemistry , scanning electron microscope , reusability , nuclear chemistry , fourier transform infrared spectroscopy , solid acid , ammonium , titanium , elemental analysis , ion exchange , inorganic chemistry , chemical engineering , organic chemistry , ion , materials science , software , computer science , engineering , composite material , programming language

A quaternary ammonium and titanium codoped phosphotungstate (QA 0.5 Ti 0.5 H 0.5 PW) catalyst was prepared by the ion exchange method and used as a solid acid catalyst for the synthesis of n -butyl oleate. The catalyst was characterized by Fourier transform infrared, elemental analyzer, energy-dispersive X-ray spectrometry, Brunauer-Emmett-Teller, scanning electron microscopy, and Hammett indicator methods. QA 0.5 Ti 0.5 H 0.5 PW showed a higher catalytic activity than other phosphotungstate solid acid catalysts reported by literature, and the esterification rate reached 99% under optimized conditions. Moreover, QA 0.5 Ti 0.5 H 0.5 PW exhibited well reusability. An esterification rate of 90.1% was still obtained in the eighth run.

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