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Circulating adsorption-desorption properties and kinetic analysis of uranium by strong basic anion resins [强碱性阴离子树脂对铀的循环吸附-淋洗性能及动力学分析]

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成果类型:
期刊论文
作者:
刘玉龙;胡南;陈祥标;陈森才;曾冰勇;...
作者机构:
[胡南; 陈祥标; 丁德馨] Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hunan, Hengyang, 421001, China
[陈森才; Zeng B.] China General Nuclear Power Group Uranium Resources Co., Ltd., Beijing, 100029, China
[刘玉龙] Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hunan, Hengyang, 421001, China<&wdkj&>China General Nuclear Power Group Uranium Resources Co., Ltd., Beijing, 100029, China
语种:
中文
关键词:
铀溶液;循环吸附;循环淋洗;循环转型;树脂中毒;动力学模型
关键词(英文):
Desorption;Detoxification;Inductively coupled plasma mass spectrometry;Kinetic parameters;Kinetic theory;Mass spectrometers;Molybdenum compounds;Resins;Silica;Sodium hydroxide;Uranium;Adsorption/desorption;Anion resins;Circulating adsorption;Circulating desorption;Circulating transformation;Modeling of dynamics;Resin poisoned;Saturation capacities;Solution concentration;Urania solution;Adsorption
期刊:
化工进展
ISSN:
1000-6613
年:
2023
卷:
42
期:
10
页码:
5574-5583
基金类别:
10975071:国家自然科学基金
机构署名:
本校为第一机构
院系归属:
核资源工程学院
摘要:
采用201×7强碱性阴离子树脂,通过固定床动态吸附试验,考察了循环吸附次数、吸附原液浓度、吸附原液流量等因素对树脂吸附铀穿透时间与饱和容量影响;开展树脂对铀的动态循环吸附-淋洗-转型试验,采用电感耦合等离子体质谱仪(ICP-MS)和工艺矿物学参数测试系统(MLA)对吸附前后树脂的表面进行表征和分析,测试饱和树脂与贫树脂杂质元素含量,探讨树脂"中毒"的物理化学机理以及有效的解毒方式;理论推导出树脂吸附铀动力学模型,并对试验数据进行拟合,验证模型的精确度.结果表明:循环吸附次数、吸附原液浓度、吸附原液流量等因素对树脂吸附穿透时间与饱和容量有较大影响.当动态循环吸附-淋洗-转型次数达到...
摘要(英文):
201×7 strong basic anion resin was used to investigate the effects of circulating adsorption times, solution concentration and solution flow rate on the penetration time and saturation capacity of uranium adsorbed by a fixed bed dynamic adsorption. Dynamic circulating adsorption-desorption-transformation test of resin adsorb uranium was carried out. Inductively Coupled Plasma Mass Spectrometry (ICP-MS) and Mineral Liberation Analyzer (MLA) were characterized and analyzed on the resins surface before and after adsorption. Content of impurity el...

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