脱水方式对CaCl_2-CaF_2熔盐制备及性能的影响
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摘要
采用干燥脱水法制备了CaCl_2-CaF_2熔盐,与真空脱水法制备的熔盐在杂质含量、溶解度、吸水性能和黏度等方面进行比较研究。结果表明,与干燥脱水法制备的CaCl2-CaF2熔盐相比,真空条件下制备的熔盐中H2O、CaO杂质含量更低,CaO、金属Ce的溶解度增加,熔盐的吸水性能更强,黏度更低。
The CaCl_2-CaF_2 molten salt was prepared by dry dehydration method and compared with the molten salt prepared by vacuum dehydration method in terms of impurity content,solubility,water absorption and viscosity.The results showed that,compared with the CaCl_2-CaF_2 molten salt prepared by dry dehydration,the impurity content of H2 O and CaO in molten salt under vacuum was lower,the solubility of CaO and metal Ce increased,and the water absorption performance was stronger and the viscosity was lower.
The CaCl_2-CaF_2 molten salt was prepared by dry dehydration method and compared with the molten salt prepared by vacuum dehydration method in terms of impurity content,solubility,water absorption and viscosity.The results showed that,compared with the CaCl_2-CaF_2 molten salt prepared by dry dehydration,the impurity content of H2 O and CaO in molten salt under vacuum was lower,the solubility of CaO and metal Ce increased,and the water absorption performance was stronger and the viscosity was lower.
引文
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[4]叶国安,张虎.核燃料后处理技术发展及其放射化学问题[J].化学进展,2011,23(7):1289-1294.YE Guoan,ZHANG Hu.A Review on the development of spent nuclear fuel reprocessing and its related radiochemistry[J].Progress in Chemistry,2011,23(7):1289-1294.
[5]KINOSHITA K,KOYAMA T,INOUE T,et al.Separation of actinides from rare earth elements by means of molten salt electrorefining with anodic dissolution of U-Pu-Zr alloy fuel[J].Journal of Physics And Chemistry Solids,2005,66:619-624.
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[12]任浩,李继东,王一雍,等.CaCl2-CaF2-CaO-SiO2熔盐体系基础性质的研究[J].有色金属(冶炼部分),2017(3):20-23.REN Hao,LI Jidong,WANG Yiyong,et al.Study on basic properties of CaCl2-CaF2-CaO-SiO2 molten salt system[J].Nonferrous Metals(Extractive Metallurgy),2017(3):20-23.
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[14]姜锋,尹志民,阿列克桑德罗夫斯基C B,等.氯化钪-氯化钠-氯化钾熔盐制备新工艺研究[J].中国稀土学报,2003,21(3):278-282.JIANG Feng,YIN Zhimin,ALEXANDROVSKIY S V,et al.Manufacture of anhydrous scandium chloridesodium chloride-potassium chloride molten salt[J].Journal of the Chinese Rare Earth Society,2003,21(3):278-282.
[15]江洪林,胡志方,吴延科,等.CaCl2-CaF2熔盐的CaO溶解度及吸水性能研究[J].有色金属(冶炼部分),2018(5):17-20.JIANG Honglin,HU Zhifang,WU Yanke,et al.CaOSolubility and Water Absorption Property of CaCl2-CaF2 Molten Salt[J].Nonferrous Metals(Extractive Metallurgy),2018(5):17-20.
[16]卢娇.FFC法阴极TiO2中掺入TiO制备Ti的研究[D].重庆:重庆大学,2016.LU Jiao.Research of preparing ti by mixing TiO into TiO2 cathode in the FFC process[D].Chongqing:Chongqing University,2016.
[17]李鸿亚,江洪林,严陈昌,等.CaCl2-CaF2熔盐的脱水工艺及性能的研究[J].矿冶,2018,27(5):52-55.LI Hongya,JIANG Honglin,YAN Chenchang,et al.The dewatering process and the properties of the CaCl2-CaF2 melten salt[J].Mining&Metallurgy,2018,27(5):52-55.