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- Title
Reaction between methanol and acetic acid catalyzed by SiO<sub>2</sub>‐supported V‐P‐O catalyst in oxygen atmosphere.
- Authors
Shen, Lingqin; Yu, Zhongyong; Wang, Aili; Yin, Hengbo
- Abstract
SiO2‐supported V‐P‐O catalysts prepared by the incipient‐wetness impregnation method beginning with ammonium metavanadate and phosphoric acid were used in the catalytic reaction between methanol and acetic acid in an oxygen atmosphere. The SiO2‐supported V‐P‐O catalysts were composed of VOPO4 and (VO)2P2O7 phases. Both the acidic and alkaline sites were co‐present in the catalysts. The vanadium species catalyzed the oxidation of methanol to formaldehyde. The V‐P‐O(20–30 wt%)/SiO2 catalysts with a P/V mole ratio of 2:1 exhibited higher catalytic activity for the formation of acrylic acid and methyl acrylate with a total selectivity of ∼28 % at 380 °C. The acid sites of the catalysts also catalyzed the formation of methyl acetate with a selectivity of ∼65 %. Methanol can be an alternative to formaldehyde for the synthesis of both acrylic acid and methyl acrylate through the aldol condensation reaction.
- Subjects
ACETIC acid; ACRYLATES; ACRYLIC acid synthesis; ACRYLIC acid; ALDOL condensation; ACID catalysts
- Publication
Canadian Journal of Chemical Engineering, 2019, Vol 97, Issue 10, p2699
- ISSN
0008-4034
- Publication type
Article
- DOI
10.1002/cjce.23571