| A222型阴离子交换树脂脱除HPPH+体系中的SO42-、NO3- |
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| 引用本文： | 程浩,陈亚中,崔鹏.A222型阴离子交换树脂脱除HPPH+体系中的SO42-、NO3-[J].化工进展,2016,35(Z1):316-320. |
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| 作者姓名： | 程浩 陈亚中 崔鹏 |
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| 作者单位： | 合肥工业大学化学与化工学院, 安徽 合肥 230009 |
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| 基金项目： | 国家自然科学基金(NSFC21476055)及安徽省科技厅合芜蚌自主创新项目(2013AKK0388)。 |
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| 摘 要： | 优化选取凝胶型强碱性苯乙烯系A222型阴离子交换树脂,对HPPH+溶液中SO42-、NO3-的交换性能进行了研究。通过静态法分别考察了A222型阴离子交换树脂在水溶液及0.05mol/L HPPH+溶液中对SO42-和NO3-脱除过程。结果表明,A222型阴离子交换树脂对HPPH+无化学吸附作用,在水体系中对SO42-和NO3-的平衡交换量分别为0.8382mmol/g和1.2980mmol/g,符合Langmuir和Freundlich吸附经验方程。树脂用量和温度是离子交换过程的主要影响因素,温度升高有利于离子交换的进行,树脂的优化用量为4g/L。A222型阴离子交换树脂可高效联合脱除HPPH+体系中的SO42-和NO3-。FTIR谱图表征显示,SO42-和NO3-可与树脂交换基团进行交换。
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| 关 键 词： | A222型树脂 离子交换 吸附 吸收剂 SO42- NO3- |
| 收稿时间： | 2016-01-17 |
A222 anion exchange resin for eliminating the SO42- and NO3- in aqueous solution of HPPH+ |
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| CHENG Hao,CHEN Yazhong,CUI Peng.A222 anion exchange resin for eliminating the SO42- and NO3- in aqueous solution of HPPH+[J].Chemical Industry and Engineering Progress,2016,35(Z1):316-320. |
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| Authors: | CHENG Hao CHEN Yazhong CUI Peng |
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| Affiliation: | School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, Anhui, China |
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| Abstract: | Gel-type strong basic anion exchange resin was screened and A222 anion exchange resin was selected for removal of SO42-, NO3- in the aqueous solution of HPPH+.The maximum exchange capacity of A222 anion for SO42-, NO3- exchange resin was determined through static absorption experiments in water and aqueous solution of HPPH+.The results indicated that A222 anion exchange resin showed almost no chemical adsorption of HPPH+, the maximum exchange capacities for SO42- or NO3- were 0.8382mmol/g and 1.2980mmol/g, respectively.The exchange process could be described using Langmuir or Freundlich equations.Resin dosage and temperature were the main influencing factors of ion exchange process, the increase of temperature was favorable for the ion exchange and the optimum dosage of resin was 4g/L.A222 anion exchange resin could be applied for removal of SO42- and NO3- in aqueous solution of HPPH+.FTIR characterizations indicated that there was new chemical bond formation during exchange with SO42- and NO3-. |
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| Keywords: | A222 anion exchange resin ion exchange adsorption adsorbents SO42- NO3- |
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