| 磷酸三丁酯/正辛醇络合萃取对氯苯酚 |
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| 引用本文： | 袁洋,李东风,常志显,张凌,李德亮.磷酸三丁酯/正辛醇络合萃取对氯苯酚[J].化学研究,2014(4):385-389. |
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| 作者姓名： | 袁洋 李东风 常志显 张凌 李德亮 |
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| 作者单位： | [1]新疆阿克苏职业技术学院,新疆阿克苏843000 [2]河南大学化学化工学院环境与分析科学研究所,河南开封475004 |
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| 基金项目： | 河南省基础与前沿项目（132300410237）; 河南省国际科技合作项目（134300510030） |
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| 摘 要： | 以对氯苯酚稀溶液为研究对象,以正辛醇为稀释剂,研究了萃取剂种类及其浓度、水相平衡pH、对氯苯酚初始浓度等因素对萃取分配比的影响,并用NaOH对其负载溶质的有机相进行反萃.结果表明,络合萃取对处理高浓度对氯苯酚废水具有优势;磷酸三丁酯(TBP)的浓度和体系的pH是影响络合萃取的关键因素;采用NaOH对有机相进行反萃,当NaOH浓度为0.5mol/L时反萃率达到98.55%.红外光谱分析表明,TBP萃取对氯苯酚基于氢键作用机理.
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| 关 键 词： | 磷酸三丁酯 对氯苯酚 络合萃取 |
Extraction of p-chlorophenol by tributylphosphate/n-octanol |
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| YUAN Yang,LI Dongfeng,CHANG Zhixian,ZHANG Ling,LI Deliang.Extraction of p-chlorophenol by tributylphosphate/n-octanol[J].Chemical Research,2014(4):385-389. |
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| Authors: | YUAN Yang LI Dongfeng CHANG Zhixian ZHANG Ling LI Deliang |
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| Institution: | 1. College of Aksu Vocational and Technical, Aksu 843000, Xinjiang, China; 2. Institute of Environmental and Analytical Sciences, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, Henan, China) |
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| Abstract: | The distribution coefficient of reactive extraction of p-chlorophenol from aqueous solution was studied using tributylphosphate as extractant and n-octanol as diluent.The effects of the extractant and its concentration,equilibrium pH,and the initial concentration of p-chlorophenol were discussed.With NaOH as stripping agent,the back extraction was also investigated.Results indicate that reactive extraction has great advantage to the treatment of high concentration p-chlorophenol-containing wastewater.The concentration of tributylphosphate and the equilibrium pH are the key factors that affect extraction equilibrium.The back extraction ratio could reach 98.55% with 0.5mol/L of NaOH.Moreover,the hydrogen-bond interaction between TBP and p-chlorophenol is validated based on infrared spectrotric analysis. |
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| Keywords: | tributylphosphate p-chlorophenol reactive extraction |
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