[1]孙越,罗军芬,崔巍,等.大孔树脂对2-萘胺-3,6,8-三磺酸的吸附性能[J].东南大学学报(自然科学版),2016,46(4):818-822.[doi:10.3969/j.issn.1001-0505.2016.04.024]
 Sun Yue,Luo Junfen,Cui Wei,et al.Adsorption properties of 2-naphthylamine-3,6,8-trisulphonic acid by macroporous resins[J].Journal of Southeast University (Natural Science Edition),2016,46(4):818-822.[doi:10.3969/j.issn.1001-0505.2016.04.024]
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大孔树脂对2-萘胺-3,6,8-三磺酸的吸附性能()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第4期
页码:
818-822
栏目:
化学化工
出版日期:
2016-07-20

文章信息/Info

Title:
Adsorption properties of 2-naphthylamine-3,6,8-trisulphonic acid by macroporous resins
作者:
孙越1罗军芬1崔巍2傅大放1
1东南大学土木工程学院, 南京 210096; 2河南省建筑设计研究院有限公司, 郑州 450014
Author(s):
Sun Yue1 Luo Junfen1 Cui Wei2 Fu Dafang1
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2 Architectural Design and Research Institute of Henan Province Co., Ltd., Zhengzhou 450014, China
关键词:
大孔树脂 吸附 2-萘胺-368-三磺酸 废水处理
Keywords:
macroporous resin adsorption 2-naphthylamine-368-trisulphonic acid wastewater treatment
分类号:
O647.3
DOI:
10.3969/j.issn.1001-0505.2016.04.024
摘要:
研究了大孔弱碱性阴离子交换树脂ND-900与复合功能树脂NDA-99对水中2-萘胺-3,6,8-三磺酸(K酸)的吸附性能.结果表明,2种树脂对K酸的吸附量均随溶液pH值的降低而增大,吸附等温线符合Langmuir模型,ND-900树脂具有比NDA-99更大的K酸吸附容量.树脂表面质子化叔氨基与K酸阴离子之间的静电作用是树脂吸附的主要作用机制,溶液中的硫酸根对K酸具有明显的竞争吸附效应.热力学分析显示,K酸在树脂上的吸附为自发的放热、熵增过程.固定床动态实验结果表明,ND-900树脂对K酸废水的吸附-脱附性能良好,且可回收的K酸纯度能达到工业产品的要求.
Abstract:
The adsorption properties of 2-naphthylamine-3,6,8-trisulphonic acid(K acid)in aqueous solution by the macroporous weakly basic anion exchanger resin ND-900 and the bifunctional polymeric resin NDA-99 were investigated. The results show that the sorption capacities of both resins increased with the decrease of the solution pH. The Langmuir model is fit for the absorption isotherm. The adsorption capacity towards K acid of ND-900 is higher than that of NDA-99. The electrostatic interaction between protonated tertiary amino groups on resins and K acid anions is the main adsorption mechanism, and sulfate in solution shows obvious competitive effect for K acid adsorption. The results of thermodynamic analysis indicate that the adsorption of K acid on both resins is a spontaneous, exothermic and entropy increase process. Under the dynamic conditions, ND-900 showed satisfactory properties of adsorption and desorption when employed to treat the industrial wastewater from K acid production process. Furthermore, the purity of the recoverable K acid can meet the industrial product standard.

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备注/Memo

备注/Memo:
收稿日期: 2015-12-30.
作者简介: 孙越(1973—),男,博士,副教授,sycyseu@163.com.
基金项目: 国家自然科学基金资助项目(51578131)、江苏省自然科学基金资助项目(BK20131287).
引用本文: 孙越,罗军芬,崔巍,等.大孔树脂对2-萘胺-3,6,8-三磺酸的吸附性能[J].东南大学学报(自然科学版),2016,46(4):818-822. DOI:10.3969/j.issn.1001-0505.2016.04.024.
更新日期/Last Update: 2016-07-20