强酸阳树脂在过氧化氢中的氧化分解特性研究  

Characteristics of oxidation and decomposition of strong acidic cation exchange resin in hydrogen peroxide

作　　者：朱志平[1] 周瑜[1] 赵永福[1] 郭小翠[1] 

机构地区：[1]长沙理工大学,湖南长沙410004

出　　处：《工业水处理》2012年第9期59-61,共3页Industrial Water Treatment

基　　金：大型先进压水堆核电站重大专项支持(2011ZX06004-017)

摘　　要：在核电站,SO42-会引起镍基金属的晶间应力腐蚀破裂,对核电站的安全经济运行造成严重危害。为探索核电站SO42-的来源,研究了几种进口阳树脂在H2O2溶液中的动态溶出特性,采用离子色谱仪和TOC仪对溶出液的SO42-、TOC进行测定。研究结果表明,过氧化氢对大孔型和凝胶型树脂的影响不同,且氧化剂浓度越高,对树脂的影响越大,溶出的SO42-也越多;脱磺化速率随着时间推移而降低,而有机物溶出速率变化相对较小。SO4 2- may cause intergranular stress corrosion cracking of nickel-based metal in nuclear power stations, resulting in serious hazards to the economically running of the nuclear power stations. To explore the source of SO4 2- of nuclear power stations, dynamic dissolving characteristics of several kinds of imported cation exchange resins in hydrogen peroxide solution have been researched. The dissolved liquid of SO4 2- ,TOC are determined by ion chro- matography and TOC meter. The results show that the effects of hydrogen peroxide on macro-porous resin and geltype resin are different. The higher the oxidant concentration is ,the higher the influence on resin is, and the more SO4 2- is dissolved. And it is very likely that the desulfonation rate decreases with time, and the change of dissolving rate of organisms is relatively small.

关 键 词：强酸型阳离子交换树脂 过氧化氢 动态溶出 核电站 

分 类 号：X946[环境科学与工程—安全科学]