应用化学 ›› 1998, Vol. 0 ›› Issue (4): 92-94.

• 研究论文 • 上一篇    下一篇

RExOy·nH2O对氟离子的吸附性能

宋宽秀1, 颜秀茹1, 胡留长1, 王建萍1, 杨朝晖2   

  1. 1. 天津大学化学系 天津 300072;
    2. 济南农药研究所 济南
  • 收稿日期:1997-11-05 修回日期:1998-03-12 出版日期:1998-08-10 发布日期:1998-08-10
  • 基金资助:
    天津市自然科学基金

The Adsorption Behavior of RExOy·nH2O for Fluoride Ion

Song Kuanxiu1, Yan xiuru1, Hu Liuchang1, Wang Jianping1, Yang Zhaohui2   

  1. 1. Department of Chemistry, Tianjin University, Tianjin 300072;
    2. Ji'nan Institute of Pesticide, Ji'nan
  • Received:1997-11-05 Revised:1998-03-12 Published:1998-08-10 Online:1998-08-10

摘要: La,Ce等稀土水合氧化物对阴离子的吸附性早有研究[1~3],但从混合轻稀土氯化物制得 的水合氧化物吸附F-的研究报道较少.为探讨难溶金属水合氧化物的除氟性能,本文以混合 轻稀土氯化物为原料,制得其水合氧化物(RExOy·nH2O),采用高聚物造粒,研究了粒状RExOy·nH2O对F-的吸附性能及吸附机理.

关键词: 混合稀土水含氧化物, 制备, 吸附剂, 除氟

Abstract: The particulate hydrous oxides of rare-earth RExOy· nH2O(RE=Ce,Nd,La,Pr)have been prepared using polyacrylonitrile as adhesive agent.They showed better fluorideremoving property.The adsorption mechanism in relation with the pH value and temperatureof the solution have been discussed briefly.

Key words: mixed hydrous rare-earth oxide, preparation, adsorbent, fluoride removing