新型硅基季铵化功能材料对Pu(Ⅳ)的吸附行为研究  

Study on Adsorption Performance of Silica-based Quaternary Ammonium Functional Material to Pu(Ⅳ)

作　　者：李辉波[1] 叶国安[1] 林灿生[1] 苏哲[1] 王孝荣[1] 赵兴红[1] 刘占元[1] 

机构地区：[1]中国原子能科学研究院放射化学研究所,北京102413

出　　处：《湿法冶金》2012年第4期208-212,共5页Hydrometallurgy of China

摘　　要：研究了硅基季铵化阴离子分离功能材料SiR4N与256×4吡啶型强碱性阴离子交换树脂在硝酸溶液中对Pu(Ⅳ)的吸附性能。结果表明:相同条件下,SiR4N对Pu(Ⅳ)的静态吸附速度比256×4树脂快;在钚、镅分离中,SiR4N的洗涤流出峰和对钚的解吸流出峰的半高宽比256×4树脂的小,表明其具有良好的分离选择性和传质动力性;穿透曲线显示,相同条件下,256×4树脂和SiR4N的交换区高度分别为294mm和165mm,工作交换容量分别为58mg/g和27mg/g;另外,SiR4N的耐辐照性能显著优于256×4树脂。The adsorption performance of silica-based quaternary ammonium material（SiR4 N） and anion exchange resin（256 × 4） to Pu（IV） were investigated. The results show that the adsorption velocity of Pu（IV） on SiR4N is faster than on 256 × 4 resin under the same conditions. In the separation process of Pu（Ⅳ） and Am（ Ⅲ）, SiR4 N has great selectivity, rapid uptake kinetics, operational exchange capacity and height of exchange region of SiR4N for Pu（Ⅳ） is 27 mg/g and 165 mm respectively,operational exchange capacity and height of exchange of 256 × 4 resin for Pu （Ⅳ）are 58 mg/g and 294 mm, respectively.

关 键 词：季铵盐 硅基 阴离子交换树脂 钚 吸附 

分 类 号：TB34[一般工业技术—材料科学与工程]