【作者】 梁志荣； 田青青； 黄鹤翔；

【Author】 LIANG Zhi-rong,TIAN Qing-qing,HUANG He-xiang (China Academy of Enginerring Physics,P.O.Box 919-71,Mianyang 621900,China)

【机构】 中国工程物理研究院；

【摘要】 在臭氧再生铈(Ⅳ)方法的基础上开展了钚污染金属的去污实验研究。自行设计、加工了铈(Ⅳ)再生和去污试验装置;实验研究获得理想的铈(Ⅳ)再生条件和硝酸浓度、铈(Ⅳ)浓度、反应时间等因素对去污效果的影响。实验结果表明,最佳的液气比为9:1;当铈(Ⅳ)浓度为0.05mol/L,硝酸浓度为2mol/L,经过48 h刻蚀处理,对不锈钢、碳钢和铸铁金属样品的平均刻蚀深度分别达到10.1μm、15.2μm和25.μm。更多还原

【Abstract】 The regeneration method of cerium（N） by ozone was studied and the decontamination technique was investigated.The experimental settling was established by design,processing and assembling.The optimal cerium（Ⅳ） regeneration condition was achieved and the main factors which made influence on the decontamination efficiency,such as nitric acid concentration,cerium（Ⅳ） initial concentration were analyzed and discussed respectively.The experiment results show the optimal liquid-gas mix ratio is 9:1.Under 2 mol/LHNO₃+0.05 mol/L cerium（Ⅳ）,the corrosion depth of 10.1μm,15.2μm and 25.4μm is obtained after 48 h corrosion process to stainless steel,carbon steel and cast iron,respectively..更多还原