| MECHANISM OF URANIUM ADSORPTION ON AMIDOXIME RESIN |
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| 作者姓名： | 郑邦锭 蔡水源 庄明江 蒋龙生 |
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| 作者单位： | Third Institute of Oceanography，National Bureau of Oceanography，Xiamen，Third Institute of Oceanography，National Bureau of Oceanography，Xiamen，Third Institute of Oceanography，National Bureau of Oceanography，Xiamen，Third Institute of Oceanography，National Bureau of Oceanography，Xiamen |
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| 摘 要： | The mechanism of uranium adsorption from seawater by polyacrylamidoxime resin is investigated by means of the experiments of adsorption isotherm and adsorption rate. The uranium uptake increases with the adsorption temperature and varies with the pH of seawater. Thermochemical and kinetic calculation show that the enthalpy change (△H) and the activation energy (E) of the uranium adsorption are 42.4 42.4 kJ mol-1 and 41.2 kJ mol-1 respectively, indicating that the uranium adsorption on the resin proceeds via a certain complex chemical reaction in which the amidoxime group in the resin chelates uranyl ions.
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| 收稿时间： | 1984/3/29 0:00:00 |
| 修稿时间： | 1984/10/5 0:00:00 |
MECHANISM OF URANIUM ADSORPTION ON AMIDOXIME RESIN |
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| ZHENG BANGDING,CAI SHUIYUAN,ZHUANG MINGJIANG and JIANG LONGSHENG.MECHANISM OF URANIUM ADSORPTION ON AMIDOXIME RESIN[J].Acta Oceanologica Sinica,1985,4(3):417-422. |
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| Authors: | ZHENG BANGDING CAI SHUIYUAN ZHUANG MINGJIANG and JIANG LONGSHENG |
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| Institution: | Third Institute of Oceanography, National Bureau of Oceanography, Xiamen |
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| Abstract: | The mechanism of uranium adsorption from seawater by polyacrylamidoxime resin is investigated by means of the experiments of adsorption isotherm and adsorption rate.The uranium uptake increases with the adsorption temperature and varies with the pH of seawater.Thermochemical and kinetic calculation show that the enthalpy change (△H) and the activation energy (E) of the uranium adsorption are 42.4 42.4 kJ mol-1 and 41.2 kJ mol-1 respectively, indicating that the uranium adsorption on the resin proceeds via a certain complex chemical reaction in which the amidoxime group in the resin chelates uranyl ions. |
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