Selective oxidation of 5-hydroxymethyl furfural over non-precious metal heterogeneous catalysts
| Autor: | Vasile I. Pârvulescu, Octavian Dumitru Pavel, Nicoleta Petrea, Mihaela Florea, Florentina Neațu, Roxana Marin |
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| Rok vydání: | 2016 |
| Předmět: |
chemistry.chemical_classification
Base (chemistry) 010405 organic chemistry Process Chemistry and Technology Inorganic chemistry chemistry.chemical_element 010402 general chemistry Furfural 01 natural sciences Catalysis 0104 chemical sciences Metal chemistry.chemical_compound Catalytic oxidation chemistry visual_art Chlorine visual_art.visual_art_medium Mixed oxide Hydroxymethyl General Environmental Science |
| Zdroj: | Applied Catalysis B: Environmental. 180:751-757 |
| ISSN: | 0926-3373 |
| Popis: | An alternative synthesis of 2,5-furandicarboxylic acid (FDCA) was carried out by oxidation of 5-hydroxy-2-methyl furfural (HMF) in aqueous medium. The reaction occurred in presence of non-precious metal (MnxFey) mixed oxide catalyst. The effect of various reaction parameters such as nature and amount of base, reaction temperature, oxygen pressure, catalyst composition were investigated in order to quantitatively produce FDCA. The catalytic behavior of the mixed oxide catalyst was assigned to an optimal Mn/Fe ratio of 3/1, where a mixture of Mn(III) and Mn(IV) coexists with a hematite phase. The synergetic cooperation of these phases allowed the efficient oxidation of FFCA to FDCA. The humins species formed by HMF degradation exhibited a negative effect over the catalytic activity of Mn/Fe mixed oxide, while the chlorine resulted after the pH modification had no influence upon the catalytic oxidation. |
| Databáze: | OpenAIRE |
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