N-辛酰吡咯烷萃取苯酚水溶液

Extraction of Phenol by N-Octanoylpyrrolidine

辛酰氯与吡咯烷反应合成了新型萃取剂 N -辛酰吡咯烷 ( OPOD) ,并考察了以煤油为稀释剂 ,OPOD萃取苯酚的性能 .研究了萃取剂浓度、苯酚浓度、酸度和温度对苯酚萃取的影响以及反萃的可行性 .由斜率法确定了萃合物的组成 ,计算出萃取反应的平衡常数以及有关的热力学函数 ,同时根据红外光谱和核磁共振谱讨论了萃取过程及萃合物的结构 .实验结果表明 ,OPOD对苯酚具有良好的萃取性能 .

The extraction of phenol in water by N octanoylpyrrolidine(OPOD) in kerosene has been satisfactorily carried out. The dependence of the extraction distribution ratio on the concentrations of extractant, phenol, acidity and temperature was investigated. The composition of the extraction complex was deduced by the slope method to be C 6H 5OH·OPOD , and the related thermodynamic functions were evaluated. The IR and NMR spectra showed the presence of intermolecular hydrogen bonding between phenol and OPOD in the extraction complexes.