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Citation: HELIAN Peng-Li, FAN Yun-Ge, SHI Zuo-Qing. Preparation and Adsorption Behavior of Strongly-weakly Basic Anion-exchange Resins Including TEDA Groups[J]. Chinese Journal of Applied Chemistry, ;2005, 22(10): 1055-1059. shu

Preparation and Adsorption Behavior of Strongly-weakly Basic Anion-exchange Resins Including TEDA Groups

1.
Institute of Polymer Chemistry, Nankai University, Tianjin 300071

Corresponding author: FAN Yun-Ge,
Received Date: 19 December 2004
Available Online: 27 May 2005
Fund Project: 国家自然科学基金(29974015)资助项目 (29974015)

A strongly-weakly basic anion-exchange resin was prepared with Triethylenediamine(TEDA) as a amination agent,and the capability of the resin was studied by titration.A comparison study was made on the adsorption behavior for benzoic acid of the resin vs that of the D201 resin and D301R resin,including the static and dynamic adsorption behavior.The results indicated that the pH titration curves of the three resins were not affected by temperature.The titration curve of the new resin is between the curves of the strongly-basic resin D201 and the weakly-basic resin D301R.The amount of benzoic acid adsorbed at equilibrium by this resin was 5.974 451 mmol/g,which was between that for D201(8.432 689 mmol/g) and D301R(5.497 871 mmol/g).At 303 K,the adsorption rate constant of the resin for benzoic acid was(0.030 60 min^-1),which was less than that for D201(0.044 89 min^-1),and greater than that for D301R(0.026 13 min^-1).
- Triethylenediamine,
- strongly-weakly basic anion exchange resin,
- titration curve,
- benzoic acid,
- adsorption capability
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