萘磺酸类染料废水络合萃取机理研究
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摘要
研究络合萃取体系处理萘磺酸类染料废水的作用及萃取机理,选取苯磺酸和叔胺(二甲苯)萃取剂组成的体系对萃合物的化学组成、萃取反应平衡常数K、萃取过程热效应进行了研究。结果表明,胺盐萃合物结构式为[0.63R3N·HA],K=17.51L/mol,萃取过程为放热反应。
The effect of complex extraction system on the treated resalts of naphthalenesulfonic acid dye wastewater and extraction mechanism was investigated in this paper.System of benzenesulfonic acid and tertiary amine(xylene)extractant were selected.The chemical composition of the extracted complexes,extraction equilibrium constants K,thermal effects of the extraction process were studied.The results showed that structural formula of ammonium salt is[0.63 R3 N·HA],K=17.51 L/mol,the extraction process was exothermic reaction.
The effect of complex extraction system on the treated resalts of naphthalenesulfonic acid dye wastewater and extraction mechanism was investigated in this paper.System of benzenesulfonic acid and tertiary amine(xylene)extractant were selected.The chemical composition of the extracted complexes,extraction equilibrium constants K,thermal effects of the extraction process were studied.The results showed that structural formula of ammonium salt is[0.63 R3 N·HA],K=17.51 L/mol,the extraction process was exothermic reaction.
引文
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[9]戴猷元,徐丽莲,杨义燕.基于可逆络合反应的萃取分离方法[J].化工进展,1991,10(1):30-34.
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[11]仉蕾,魏兴义,刘勇弟.萃取法处理萤光废水[J].化工环保,1995,15(l):28-31.
[12]杨义燕,孙彦,戴猷元.有机磺酸类化合物的络合萃取研究[J].环境化学,1998,17(l):24-27.
[13]倪永年,梁军,尹新民.标准加入法在酸碱分析中的应用[J].分析化学,1993,21(7):792.
[14]汪家鼎,陈家镛.溶剂萃取手册[M].北京:中国铁道出版社.2000,2.
[2]Shiyun Z,Xuesong Z,Daotang L.Ozonation of naphthalene sulfonic acids in aqueous solutions.PartI:elimination of COD,TOCand increase of their biodegradability[J].Water Res,2002,36:1237-1243.
[3]Shiyun Z,Xuesong Z,Daotang L,et al.Ozonation of naphthalene sulfonic acids in aqueous solutions:PartII-Relationships of their COD,TOC removal and the frontier orbital energies[J].Water Res,2003,37:1185-1191.
[4]冯文国,张全兴,陈金龙.萘系染料中间体生产废水的治理方法[J].化工环保,1999,19(4):208-211.
[5]鲁军,周洪德,魏兴义.用络合萃取法对磺酸型有机废水进行预处理的研究[J].化工环保,1995,15(2):67-72.
[6]胡大波.孔树脂NG-13处理含萘磺酸废水的研究[J].中国资源综合利用,2012,30(4):33-35.
[7]张凌,陶莹,常志显,等.臭氧法降解水中对甲基苯磺酸的动力学研究[J].环境科学学报,2011,31(10):2185-2191.
[8]King C J.Separation Process Based on Reversible Chemical Complexation.Handbook of Separation Process Technology[M].Rowseau R Wed·New York:John Wiley&Sons,1987:760-774.
[9]戴猷元,徐丽莲,杨义燕.基于可逆络合反应的萃取分离方法[J].化工进展,1991,10(1):30-34.
[10]陈天荣.萃取法在污水处理中的应用[J].石油化工环境保护,1991,1:24-28.
[11]仉蕾,魏兴义,刘勇弟.萃取法处理萤光废水[J].化工环保,1995,15(l):28-31.
[12]杨义燕,孙彦,戴猷元.有机磺酸类化合物的络合萃取研究[J].环境化学,1998,17(l):24-27.
[13]倪永年,梁军,尹新民.标准加入法在酸碱分析中的应用[J].分析化学,1993,21(7):792.
[14]汪家鼎,陈家镛.溶剂萃取手册[M].北京:中国铁道出版社.2000,2.