| 三烷基胺萃取氨基磺酸及其废水的特性研究 |
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| 引用本文： | 秦炜,李振宇,汪敏,戴猷元.三烷基胺萃取氨基磺酸及其废水的特性研究[J].中国化学工程学报,2004,12(1):137-142. |
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| 作者姓名： | 秦炜 李振宇 汪敏 戴猷元 |
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| 作者单位： | StateKeyLaboratoryofChemicalEngineering,DepartmentofChemicalEngineering,TsinghuaUniversity,Beijing100084,China |
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| 摘 要： | p-Amino benzene sulfonic acid (PABSA) is selected as the solute with amphoteric functional group, Lewis acid and Lewis base, to be separated from its dilute solutions. An aliphatic, straight chain amine, Alamine 336, is used as the extractant, and kerosene, 1-octanol, chloroform, butyl acetate and benzene as the diluent. The effects of pH value of solution, extractant concentration, salt and types of diluent on the distribution coefficient, D, are studied. There is a peak of D value with pH value of solution, the polar diluents are favorable for extracting PABSA, and the salt in aqueous phase reduces values of D apparently. The extraction equilibrium is described using the mass action law, and the calculated data according to the proposed model agree with the experimental data well. Further, the extraction behavior for other amino benzene sulfonic acids, 1-amino-8-naphtol-3,6-disulfonic acid (H acid) and 4,4′-diaminostilbene-2,2′-disulfonic acid (DSD acid), is investigated in a wide pH value region. Finally. H acid and DSD acid are successfully removed from wastewater by the extraction with Alamine 336.
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| 关 键 词： | 废水处理 氨基磺酸 阿拉明336 萃取 pH值 |
| 修稿时间： | |
Extraction Behavior and Wastewater Treatment of Amino Sulfonic Acid with Alamine 336 |
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| QIN Wei,LI Zhenyu,WANG Min,DAI Youyuan.Extraction Behavior and Wastewater Treatment of Amino Sulfonic Acid with Alamine 336[J].Chinese Journal of Chemical Engineering,2004,12(1):137-142. |
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| Authors: | QIN Wei LI Zhenyu WANG Min DAI Youyuan |
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| Affiliation: | State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China;State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China;State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China;State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | p-Amino benzene sulfonic acid (PABSA) is selected as the solute with amphoteric functional group,Lewis acid and Lewis base, to be separated from its dilute solutions. An aliphatic, straight chain amine, Alamine 336, is used as the extractant, and kerosene, 1-octanol, chloroform, butyl acetate and benzene as the diluent. The effects of pH value of solution, extractant concentration, salt and types of diluent on the distribution coefficient, D,are studied. There is a peak of D value with pH value of solution, the polar diluents are favorable for extracting PABSA, and the salt in aqueous phase reduces values of D apparently. The extraction equilibrium is described using the mass action law, and the calculated data according to the proposed model agree with the experimental data well. Further, the extraction behavior for other amino benzene sulfonic acids, 1-amino-8-naphtol-3,6-disulfonic acid (H acid) and 4,4′-diaminostilbene-2,2′Cdisulfonic acid (DSD acid), is investigated in a wide pH value region.Finally, H acid and DSD acid are successfully removed from wastewater by the extraction with Alamine 336. |
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| Keywords: | reactive extraction equilibrium amino sulfonic acid Alamine 336 pH value |
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