| Study on Adsorption of Rare Earth Elements by Kaolinite |
| |
| 引用本文： | 万鹰昕,刘丛强. Study on Adsorption of Rare Earth Elements by Kaolinite[J]. 中国稀土学报(英文版), 2005, 23(3): 377-381 |
| |
| 作者姓名： | 万鹰昕 刘丛强 |
| |
| 作者单位： | State Key Laboratory of Environmental Geochemistry，Institute of Geochemistry，Chinese Academy of Sciences，Guiyang 550002，China，Graduate School of Chinese Academic of Sciences，Beijing 100039，China，College of Arts and Sciences of Beijing Union University，Beijing 100083，China，State Key Laboratory of Environmental Geochemistry，Institute of Geochemistry，Chinese Academy of Sciences，Guiyang 550002，China |
| |
| 基金项目： | 中国科学院资助项目，国家自然科学基金 |
| |
| 摘 要： | Rareearthelements (REEs)werewidelyappliedtotracingthesourcesofmaterialsandtostudyingtheirevolutionprocessesinmanyfieldsofearthscienceinconsiderationoftheirsimilarityandsystematicdiffer enceinchemicalproperties .Furthermore ,lanthanidesarebothimportantprod…
|
| 关 键 词： | 高岭土 红土 吸附能力 分配系数 稀土 |
Study on Adsorption of Rare Earth Elements by Kaolinite |
| |
| Wan Yingxin,Liu Congqiang. Study on Adsorption of Rare Earth Elements by Kaolinite[J]. Journal of Rare Earths, 2005, 23(3): 377-381 |
| |
| Authors: | Wan Yingxin Liu Congqiang |
| |
| Abstract: | For better understanding the adsorption of rare earth elements (REEs) by clay minerals and its controlling factors, the experiments on adsorption of REEs in solutions with 1 g·L-1 kaolinite were performed at different conditions. The results are as follows: the REEs reach equilibrium in the adsorption-desorption process for 24; Langmuir's adsorption curve is used for modeling the adsorption of REEs by kaolinite; a general trend is that the higher the contents of REEs are, the less obvious the fractionation is. Furthermore, there is significant effect of pH on the adsorption and fractionation of REEs by kaolinite, and the REEs distribution coefficient increases with increasing pH. When pH is nearly neutral, as reaches 7, heavy REEs are more adsorbed than light REEs. |
| |
| Keywords: | pedology kaolinite adsorption distribution coefficient rare earths |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
