Abstract
The paraffin wax was used as an organic solvent for 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone (PMBP) and trioctylphousphine oxide (TOPO) in the extraction of rare earth ions (La3+, Pr3+, Eu3+, Yb3+ and Ho3+) at 70°C. The composition of the extracted specices were given as RE (PMBP)3(TOPO)2 by means of slope analysis. The variation of the synergistic extraction equilibrium constant (Ksex) was studied at 55°C-70°C . The thermodynamic data obtained showed that the synergistic extraction of rare earth ions by PMBP and TOPO in molten paraffin wax is exothermic and the extracted complexes were formed by TOPO bonding to the outer sphere hydration.
| Original language | English |
|---|---|
| Pages (from-to) | 25-26 |
| Number of pages | 2 |
| Journal | Rare Metals |
| Volume | 16 |
| Issue number | 1 |
| Publication status | Published - 1997 |
Keywords
- PMBP
- Paraffin wax
- Rare earth
- Synergistic extraction
- TOPO
ASJC Scopus subject areas
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Metals and Alloys
- Materials Chemistry
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Jinzhang, G., Haiyan, F., Bo, P., & Jingwan, K. (1997). Synergistic extraction of rare earth ions by 1-phenyl-3-methyl-4-benzoyl-5-pyrazolone and trioctylphousphine oxide in paraffin wax. Rare Metals, 16(1), 25-26.