摘要
研究了压水堆主回路钴的模拟腐蚀产物在柠檬酸、过氧化氢和柠檬酸—过氧化氢的水溶液中的溶解特性，结果表明：钴模拟腐蚀产物在柠檬酸水溶液中的溶解量随柠檬酸浓度的增加而明显增大，在不同pH值时，按溶解量q排列的次序是：q3．00＞q4．50＞q4．00＞q3．50＞q2．33，在同一浓度的柠檬酸水溶液中，钴模拟腐蚀产物的溶解量比铁的相应值高0倍以上；钴模拟腐蚀产物的溶解量70℃时比60℃、80℃时都高；钴模拟腐蚀产物在H2O2水溶液中的溶解量比在柠檬酸中的相应值低得多，在过氧化氢－柠檬酸水溶液中的溶解量比单一柠檬酸水溶液的相应值高．图4。
The studies on the dissolution characteristics of simulated corrosion products of cobalt on pressurized water reactor primay coolant loops in aqueous solution Of citric acid, hydrogen perocide and citric acid - hydrogen perocide have been performed. The results show that the portion of dissolved simulated corrosion products of cobalt in citric acid aqueous solution clearly increase with a rise in citric acid concentration and is ten times above the corresponding value of iron. The portion of the products that dissolve is the largest at pH 3. 00 in the pH range of 2. 33 -4. 50 and at 70℃ in the range of 60 ℃-80℃. It is show that the portion of the dissolved simulated corrosion product of cobalt in hydrogen peroxide aqueous solution is smaller than the corresponding value in citric acid, and that the portion of the dissolved simulated corrosion product of cobalt in aqueous solution of hydrogen peroxide - citric acid is larger than the corresponding value in single citric acid aqueous solution. 4figs., 7refs.
出处
《湘潭矿业学院学报》
1998年第4期45-49,共5页
Journal of Xiangtan Mining Institute
基金
核工业科学基金!J95P08001
关键词
钴
腐蚀产物
柠檬酸
过氧化氢
水溶液
压水堆
pressurized water reactor, primary coolant loop, in-service decontamination, citric acid, hydrogen peroxide, dissolubility
