| 氨基膦酸螯合树脂吸附重稀土的研究 |
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| 引用本文： | 焦芸芬,何小林,廖春发,姜平国.氨基膦酸螯合树脂吸附重稀土的研究[J].离子交换与吸附,2009,25(4). |
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| 作者姓名： | 焦芸芬 何小林 廖春发 姜平国 |
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| 作者单位： | 1. 江西理工大学材料与化学工程学院,赣州,341000
2. 福建赣闽稀有金属有限公司,上杭,3642111 |
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| 基金项目： | 国家自然科学基金资助项目，江西省自然科学基金资助项目 |
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| 摘 要： | 研究了重稀土在氨基膦酸树脂的吸附行为.试验结果表明,氨基膦酸树脂对重稀土的吸附在pH=5.0的HAc-NaAc缓冲溶液时最佳;298K时静态饱和吸附容量为332mg/g干树脂;用2mol/L盐酸洗脱,洗脱率为91.2%;等温吸附服从Freundlich经验式;吸附反应中△H=10.76kJ/mol,表观速率常数k298=1.223×10-4s-1,表观活化能Ea=3.2kJ/mol.
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| 关 键 词： | 氨基膦酸树脂 重稀土 吸附 |
STUDIES ON THE SORPTION OF AMINO METHYLENE PHOSPHONIC ACID RESIN FOR HEAVY RARE EARTH METALS |
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| JIAO Yunfen,HE Xiaolin,LIAO ChunFa,JIANG Pingguo.STUDIES ON THE SORPTION OF AMINO METHYLENE PHOSPHONIC ACID RESIN FOR HEAVY RARE EARTH METALS[J].Ion Exchange and Adsorption,2009,25(4). |
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| Authors: | JIAO Yunfen HE Xiaolin LIAO ChunFa JIANG Pingguo |
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| Institution: | JIAO Yunfen1 HE Xiaolin2 LIAO ChunFa1 JIANG Pingguo1 1. School of Material , Chemical Engineering,Jiangxi University of Science & Technology,Ganzhou 341000,China 2. Fujian Ganmin Rare Metal Co.,LTd,Shanghang 364211,China |
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| Abstract: | The sorption behavior of amino methylene phosphonic acid resin (APAR) for Heavy Rare Earth metals is investigated. Experimental results show that heavy rare earth metals is optimally adsorbed by amino methylene phosphonic acid resin in a pH =5.0 buffer medium of HAc-NaAc. The statically saturated sorption capacity at 298K is 332mg/g. Heavy rare earth metals adsorbed on APAR can be eluted with 2mol/L HCl and elution percentage is 91.2%. The sorption behavior of APAR for Heavy rare earth metals obeys the Freu... |
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| Keywords: | Am inom ethylene phosphonic acid resin Heavy rare earth metals Sorption |
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