2-37 Desorption of Uranium from Amidoximed Silica

• 作者: Bai Jing Yin Xiaojie
• 来源期刊: 中国科学院近代物理研究所和兰州重离子研究装置年报：英文版
• 学科: 物理学
• 关键词: Amidoximed SILICA URANIUM
• 年，卷（期）: 2014,（1）
• 页码范围: 77-78
• 页数: 2页
• 分类号: O4

摘要

Previous work suggested that amidoximed silica can be used as a highly efficient adsorbent for uranium removalfrom salt lake water. In this work, desorption of uranium from amidxoximed silica was investigated.Amidoximed silica, which were loaded with uranium(VI) from salt lake water were used for desorption studies.0.1 mol / L of HNO3 Na2CO3, NaHCO3 and NaOH solution were used as desorbing solutions, respectively. The uranium desorbed into the solution was determined after shaking for certain time. Desorption efficiency wascalculated directly from the difference between the desorbed and absorbed uranium. The desorption ratio (%) wascalculated by the following equation: