Kinetics of N-Phosphonomethyl Iminodiacetic Acid Catalytic Oxidation with Hydrogen Peroxide Under the Phase-Transfer Conditions
Oxidation of the N–phosphonomethyl iminodiacetic acid (PMIDA) with hydrogen peroxide in a two-phase system (aqueous phase—organic phase) in the presence of the [(Oct n ) 3 NMe] 3 {PO 4 [WO(O 2 ) 2 ] 4 } catalyst was studied and the kinetic parameters of this reaction were determined. It was found th...
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| Veröffentlicht in: | Catalysis letters 2022-07, Vol.152 (7), p.2025-2032 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Oxidation of the N–phosphonomethyl iminodiacetic acid (PMIDA) with hydrogen peroxide in a two-phase system (aqueous phase—organic phase) in the presence of the [(Oct
n
)
3
NMe]
3
{PO
4
[WO(O
2
)
2
]
4
} catalyst was studied and the kinetic parameters of this reaction were determined. It was found that the PMIDA oxidation with aqueous H
2
O
2
proceeds only in the presence of the catalyst giving PMIDA N-oxide as the main product. Under the studied conditions, the reaction orders with respect to the reagents (PMIDA and H
2
O
2
) and the catalyst were found to be the first. The apparent activation energy of the reaction for the temperature range of 313–343 K is 37 ± 3 kJ/mol.
Graphic Abstract |
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| ISSN: | 1011-372X 1572-879X |
| DOI: | 10.1007/s10562-021-03798-z |