季铵氯化物Aliquat336对氨基苯磺酸的平衡萃取

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季铵氯化物Aliquat336对氨基苯磺酸的平衡萃取

李振宇; 秦炜; 戴猷元

Department of Chemical Engineering, Tsinghua University, Beijing 100084,China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2002-08-28 发布日期:2002-08-28
通讯作者: 李振宇

Equilibrium of Extraction of p-Aminobenzenesulfonic Acid by Aliquat 336

LI Zhenyu; QIN Wei; DAI Youyuan

Department of Chemical Engineering, Tsinghua University, Beijing 100084,China

Received:1900-01-01 Revised:1900-01-01 Online:2002-08-28 Published:2002-08-28
Contact: LI Zhenyu

摘要/Abstract

摘要： p-Aminobenzenesulfonic acid was selected as a typical solute with amphoteric functional
groups to be separated from dilute solution. A quaternary ammonium chloride, Aliquat 336,
was used as the extractant.The effects of pH, extractant concentration and diluent types on
distribution coefficient, D, were investigated.Meanwhile, the ion exchange reaction for
Aliquat 336 with p-aminobenzenesulfonic acid in the extraction process was discussed. The
description of D was proposed according to the mass action law. The results show that the D
in non-polar diluents, kerosene and CCl4, is larger than that in polar diluent, 1-octanol
and chloroform. The sodium sulfate in aqueous phase affects D strongly due to exchange of
sulfate ions with Aliquat 336. Finally, the removal of 4,4′-diaminostilbene-2,2′-
disulfonic acid (DSD acid), an amino sulfonic acid, was successfully achieved from
wastewater by the extraction with Aliquat 336.

关键词: p-aminobenzenesulfonic acid;complexation extraction;Aliquat 336

Abstract: p-Aminobenzenesulfonic acid was selected as a typical solute with amphoteric functional
groups to be separated from dilute solution. A quaternary ammonium chloride, Aliquat 336,
was used as the extractant.The effects of pH, extractant concentration and diluent types on
distribution coefficient, D, were investigated.Meanwhile, the ion exchange reaction for
Aliquat 336 with p-aminobenzenesulfonic acid in the extraction process was discussed. The
description of D was proposed according to the mass action law. The results show that the D
in non-polar diluents, kerosene and CCl4, is larger than that in polar diluent, 1-octanol
and chloroform. The sodium sulfate in aqueous phase affects D strongly due to exchange of
sulfate ions with Aliquat 336. Finally, the removal of 4,4′-diaminostilbene-2,2′-
disulfonic acid (DSD acid), an amino sulfonic acid, was successfully achieved from
wastewater by the extraction with Aliquat 336.

Key words: p-aminobenzenesulfonic acid, complexation extraction, Aliquat 336

李振宇, 秦炜, 戴猷元. 季铵氯化物Aliquat336对氨基苯磺酸的平衡萃取[J]. CIESC Journal.

LI Zhenyu, QIN Wei, DAI Youyuan. Equilibrium of Extraction of p-Aminobenzenesulfonic Acid by Aliquat 336[J]. .

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季铵氯化物Aliquat336对氨基苯磺酸的平衡萃取

Equilibrium of Extraction of p-Aminobenzenesulfonic Acid by Aliquat 336

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