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.
出处
《湿法冶金》
CAS
北大核心
2012年第4期208-212,共5页
Hydrometallurgy of China
关键词
季铵盐
硅基
阴离子交换树脂
钚
吸附
quaternary ammonium salt
silica-based
anion exchange resin
plutonium
adsorption
