湿法冶金2015，Vol.34Issue(5)：356-360,5.DOI:10.13355/j.cnki.sfyj.2015.05.002
吸附铀的丙烯腈骨架螯合树脂的研制
Synthesis of Chelating Resins Based on Acrylonitrile Skeleton for Absorption Uranium
郎哲思 1封宇 1王凤菊 1陈树森1
作者信息
- 1. 核工业北京化工冶金研究院 ,北京 101149
- 折叠
摘要
Abstract
Macroporous chelating resins with amidoxime groups were prepared after the crosslinked copolymers based on acrylonitrile(AN)-divinylbenzene(DVB)-methylacrylate(MA) were synthesized via suspensin polymerization method .The effects of dosages of DVB ,MA ,pore former and other reaction factors on the exchange capability of the chelating resins were investigated .The effects of pH , adsorption time ,and initial uranium concentration on adsorption properties of the resins were examined .T he results indicate that the anion exchange capacity of the synthesized resin is 4 .3 mmol/g when toluene is chosen as a pore former ,degree of crosslinking is 10% and content of MA is 10% .The maximum adsorption capacity is observed at the pH = 5 .0 and 25 ℃ .Adsorption equilibrium is achieved in 2 h approximately .Adsorption capacity of the resin for uranium is 20 .0 mg/g w hen initial concentration of Na2 CO3 is 50 g/L and uranyl concentration is 300 mg/L .关键词
悬浮聚合/偕胺肟基团/螯合树脂/铀Key words
suspension polymerization/amidoxime group/chelating resin/uranium分类
能源科技引用本文复制引用
郎哲思,封宇,王凤菊,陈树森..吸附铀的丙烯腈骨架螯合树脂的研制[J].湿法冶金,2015,34(5):356-360,5.
