Abstract:A quaternary
ammonium and titanium codoped phosphotungstate (QA0.5Ti0.5H0.5PW) 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. QA0.5Ti0.5H0.5PW showed a higher catalytic activity
than other phosphotungstate solid acid catalysts reported b… Show more
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