模拟镎钚溶液的微波浓缩转型

用Zr模拟镎钚元素与硝酸、草酸等组成溶液,通过比较微波和油浴减压蒸馏两种加热方式,获得了模拟镎钚的反萃液浓缩转型的工艺参数。主要转型方式为高温浓缩溶液后得到的固体再进行煅烧,使模拟镎钚的反萃液转型为氧化物。借助XRD、BET等分析测试方法对氧化物的性能进行了研究。实验结果表明：微波减压蒸馏比油浴减压蒸馏法减少了浓缩时间,馏出的硝酸可循环使用。微波浓缩得到的固体煅烧后的氧化物比表面积大,易于后续固化研究。...

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Published in核化学与放射化学 Vol. 34; no. 5; pp. 292 - 296
Main Author 朴昱曦 文明芬 陈吉 王建晨
Format Journal Article
LanguageChinese
Published 清华大学核能与新能源技术研究院,北京100084%清华大学核能与新能源技术研究院,北京,100084%辽宁石油化工大学机械工程学院,辽宁抚顺,113001 2012
辽宁石油化工大学机械工程学院,辽宁抚顺113001
Subjects
减压蒸馏
循环
微波
硝酸
微波
减压蒸馏
循环
硝酸
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ISSN0253-9950

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Summary:用Zr模拟镎钚元素与硝酸、草酸等组成溶液,通过比较微波和油浴减压蒸馏两种加热方式,获得了模拟镎钚的反萃液浓缩转型的工艺参数。主要转型方式为高温浓缩溶液后得到的固体再进行煅烧,使模拟镎钚的反萃液转型为氧化物。借助XRD、BET等分析测试方法对氧化物的性能进行了研究。实验结果表明：微波减压蒸馏比油浴减压蒸馏法减少了浓缩时间,馏出的硝酸可循环使用。微波浓缩得到的固体煅烧后的氧化物比表面积大,易于后续固化研究。
Bibliography:11-2045/TL
PIAO Yu-xi1,2,WEN Ming-fen2,＊,CHEN Ji1,WANG Jian-chen2 1.College of Mechanical Engineering,Liaoning Shihua University,Fushun 113001,China; 2.Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China
The process parameters of simulated solution of Np-Pu changing into oxides were obtained by two reduced pressure distillation methods,microwave heating method and oil-bath method,and the simulated solution contains of HNO3,H2C2O4 and Zr.The oxides was gained by the method that the concentrated solution is dried and ignited.The properties of oxides were investigated by means of X-ray diffraction analysis and surface analysis.The results show that the microwave heating reduced pressure distillation method can shorten concentrating time significantly than oil-bath heating method,and the distilled nitric acid can be reused.The oxide obtained by microwave process has large surface area,facilitating the subsequent immobilization study more easy.
microwave; reduced pressure distillat
ISSN:0253-9950