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- Title
Aqueous-Phase Oxidation of Furfural to Maleic Acid Catalyzed by Copper Phosphate Catalysts.
- Authors
Soták, Tomáš; Hronec, Milan; Gál, Miroslav; Dobročka, Edmund; Škriniarová, Jaroslava
- Abstract
This work describes catalytic aqueous-phase oxidation of furfural to maleic acid. The heterogeneous Cu-phosphate catalysts were prepared by coprecipitation method at different atomic ratios of precursors and characterized by various techniques. The CaCu-phosphate catalyst showed the best catalytic performance. Using this catalyst under reaction conditions (115 °C and 0.8 MPa of O) 37.3 mol% yield and 54.8% selectivity of maleic acid were achieved. This catalyst can be recycled more than four times producing practically the same selectivity as fresh one by 13% decrease in furfural conversion. The proposed mechanism involves furoic acid as an intermediate in the formation of maleic acid. Graphical Abstract:
- Subjects
HETEROGENEOUS catalysis; MALEIC acid; COPPER phosphate; OXIDATION; COPRECIPITATION (Chemistry); CHEMICAL reactions
- Publication
Catalysis Letters, 2017, Vol 147, Issue 11, p2714
- ISSN
1011-372X
- Publication type
Article
- DOI
10.1007/s10562-017-2191-5