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Citation: CHENG Qian, BAO Bo-Rong, CAO Wei-Guo, CHEN Wei-Yan, HAN Yang. Extraction of Phenol by N-Pyrrolidyl-2-picolinamide (NPPFA) from Aqueous Solution[J]. Chinese Journal of Applied Chemistry, ;2005, 22(5): 530-533. shu

Extraction of Phenol by N-Pyrrolidyl-2-picolinamide (NPPFA) from Aqueous Solution

1.
Department of Chemistry, Shanghai University, Shanghai 200436

Corresponding author: BAO Bo-Rong,
Received Date: 16 July 2004
Available Online: 7 December 2004

A new extractant (NPPFA) was synthesized from 2-pyridinecarboxylic acid and pyrrolidine,and its extraction behavior for phenol was studied.The results show that the distribution ratio of phenol is high,and there is no emulsion and the two phases separate easily.By application of the methods of double-logarithmic slope and continuous variation,the composition of the extracted species was determined to be C₆H₅OH·NPPFA.The enthalpy of the extraction reaction was calculated to be ΔH⁰=-42.59 kJ/mol based on the Van't Hoff equation.The structure of the extracted species and the mechanism of the extraction reaction were investigated by infrared spectroscopy.
- NPPFA,
- solvent extraction,
- phenol
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