Abstract
An attempt to characterize the interaction of rare earth elements with P507 in a microfluidic extraction system containing lactic acid as complexing agent is made using spectroscopic (FT-IR, UV–Vis, NMR and MS) analysis. The role of lactic acid in the extraction process is analyzed. The extraction mechanism confirmed that lactic acid does not involve in the extraction reaction. A comparative analysis of the composition of the extracts using FT-IR, UV–Vis, NMR and MS methods, indicates that the extracted complexes of rare earth ions located in the center is formed by the cation exchange process between P–O–H and RE3+, and coordination process between P[dbnd]O and RE3+.
Original language | British English |
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Pages (from-to) | 453-460 |
Number of pages | 8 |
Journal | Chemical Engineering Journal |
Volume | 356 |
DOIs | |
State | Published - 15 Jan 2019 |
Keywords
- Complex extraction
- Microreactor
- P507
- Rare earths
- Spectrum