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Li Zhenyu,Yang Yiyan and Dai Youyuan ** (Department of Chemical Engineering,Tsinghua University,Beijing 100084)
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李振宇,杨义燕,戴猷元
Abstract: Based on systematic investigation and analysis of literature, p aminobenzene sulfonic acid is selected as a typical solute to be separated from dilute solution.An aliphatic,straight chain tertiary amine,7301,is used as complexing agent.Since the pH of aqueous solution is an important factor in chemical complexation extraction of p aminobenzene sulfonic acid,its effect on extraction equilibium is especially studied in the experiments.The effects of concentration of complexing agent and type of diluents on distribution ratio D are also investigated.Meanwhile,the proton transfer equilibrium is discussed.By using Mass Action Law,an expression of equilibrium distribution ratio for 7301 system is proposed.The results show satisfying precision of the model.
摘要: 利用三烷基胺 (730 1 )为络合剂 ,在较宽的 pH值条件下实验测定了对氨基苯磺酸稀溶液的萃取相平衡分配系数 ;分析了络合剂浓度、稀释剂种类以及溶液 pH值对络合萃取相平衡分配系数的影响 ;讨论了络合剂萃取对氨基苯磺酸偶极离子的质子转移过程 ,提出了平衡分配系数D值的表达式 .
CLC Number:
TQ028.32
Li Zhenyu,Yang Yiyan and Dai Youyuan ** (Department of Chemical Engineering,Tsinghua University,Beijing 100084). EXTRACTION OF p-AMINOBENZENE SULFONIC ACID WITH TRIALKYLAMINE(7301) BASED ON CHEMICAL COMPLEXATION[J]. .
李振宇,杨义燕,戴猷元. 三烷基胺(7301)络合萃取对氨基苯磺酸稀溶液 [J]. CIESC Journal.
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