用201×7强碱性阴离子交换树脂从碱性溶液中吸附铀  

Adsorption of Uranium From Alkaline Solution Using 201×7 Strong-base Anion-exchange Resin

作　　者：常喜信[1] 支梅峰 周志全[1] 牛玉清[1] 任燕[1] 曹令华[1] 曹笑豪 叶开凯 CHANG Xixin;ZHI Meifeng;ZHOU Zhiquan;NIU Yuqing;REN Yan;CAO Linghua;CAO Xiaohao;YE Kaikai(Beijing Research Institute of Chemical Engineering and Methallurgy,CNNC,Beijing 101149,China)

机构地区：[1]核工业北京化工冶金研究院,北京101149

出　　处：《湿法冶金》2021年第3期236-238,共3页Hydrometallurgy of China

摘　　要：研究了用强碱性阴离子交换树脂从碱性溶液中吸附铀,考察了溶液pH、温度、吸附时间等因素对吸附效果的影响,并绘制了吸附等温线,对负载树脂进行动态吸附淋洗。结果表明:用强碱性离子阴离子交换树脂可以有效地从碱性溶液中选择性吸附铀,铀吸附量达60 mg/g;负载树脂用碳酸铵及碳酸氢铵溶液淋洗后可循环使用。Adsorption of uranium from alkaline solution using 201×7 strong-base anion-exchange resin was studied.The effects of solution pH,temperature,contact time on adsorption of uranium were examined.The adsorption isotherm and dynamic adsorption curve were drew.The results show that the resin can effectively adsorb uranium in alkaline solution with adsorption capacity of 60 mg/g.The loading resin washed using ammonium carbonate+ammonium bicarbonate solution can reused.

关 键 词：碱性溶液 离子交换树脂 铀 吸附 

分 类 号：TL212[核科学技术—核燃料循环与材料]