离子交换树脂在高参数水汽系统中的分解特性研究  

DECOMPOSITION CHARACTERISTICS OF ION EXCHANGE RESIN IN HIGH PARAMETER WATER-STEAM SYSTEM

作　　者：孙海军[1] 韩建伟[2] 刘小杰[1] 刘芬芬[1] 曹顺安[2] 

机构地区：[1]武汉第二船舶设计研究所,武汉430064 [2]武汉大学动力与机械学院水质工程系,武汉430072

出　　处：《离子交换与吸附》2012年第3期267-276,共10页Ion Exchange and Adsorption

摘　　要：通过高压釜模拟高温高压的水汽环境,研究了离子交换树脂在温度为230℃和300℃下的分解特性,全面检测了离子交换树脂的各种分解产物和树脂分解前后的结构变化,结合树脂的化学结构,分析了离子交换树脂的分解机理,并通过高压釜挂片试验,探究了离子交换树脂的分解产物对TA16合金的影响。试验结果表明,离子交换树脂的分解包括具有离子交换能力的活性基团的脱离和树脂骨架的分解,H型阳树脂分解产生了H2SO4,Na型阳树脂分解生成了NaHSO4,OH型阴树脂分解生成了三甲胺,Cl型阴树脂分解产生氯化三甲铵,4种树脂分解都有苯及苯的同系物生成,且分解产物对TA16合金没有明显的腐蚀。Decomposition characteristics of ion exchange resin have been researched in the water-steam system of 230℃ and 300℃ simulated by autoclave. The decomposition products and the molecular structure change of resin have been detected and researched comprehensively; taking account of the resin＇s chemical structure, the mechanism of resin＇s decomposition have been analyzed; and the effects of resin,s decomposition products on TA16 alloy have been explored. The results show that the decomposition of resin includes the detachment of ion exchange group and the decomposition of resin framework. Thus, the decomposition of H form cation resin produces HzSO4, the decomposition of Na form cation resin produces NaI-ISO4, OH form anion resin trimethylamine, C1 form anion resin trimethylamine chloride; The decomposition of the four kinds of resin also produces benzene and homologue of benzene, and the products of the resin have no corrosion to TA16 alloy.

关 键 词：离子交换树脂 高参数 水汽系统 分解 TA16合金 腐蚀 

分 类 号：TQ32[化学工程—合成树脂塑料工业]