辐射防护2012，Vol.32Issue(2)：72-76,87,6.
掺铀榍石人造岩石固化体的制备及其浸出性能
The Preparation and Leaching Performance of Sphene Synroc Form Doped Uranium
摘要
Abstract
The sphene synroc form doped uranium was prepared by solid-state method,using calcium carbonate（CaCO3）,titanium dioxide（TiO2）,alumina（Al2O3）,silica（SiO2） and uranyl nitrate [UO2（NO3）2.6H2O] as raw materials.The sintering temperatures,composes from crystals,and leaching rates of uranium of the synroc forms,were studied by means such as X-ray diffraction（XRD） and scanning electron microscope（SEM）.The results indicate that the ideal sintering temperature of the synroc form is 1 260 ℃.The sphene can dissolve commendably uranium and come into being sphene solution.The leaching rates of uranium of synroc forms,for the formulas of Ca095U0.05Ti0.9Al0.1SiO5 and Ca092U0.04Ti0.9SiO5,are 7.0×10-10 m.d-1 and 9.5×10-10 m.d-1 respectively;Their unitary leaching rates of uranium are 2.10×10-3 g.m-2.d-1 and 1.76×10-3 g.m-2.d-1 respectively at 90 ℃,42 day.关键词
榍石/固化体/烧结温度/浸出率Key words
sphene/form/sintering temperature/leaching rate分类
能源科技引用本文复制引用
滕元成,赵伟,任雪潭,李玉香,吴浪..掺铀榍石人造岩石固化体的制备及其浸出性能[J].辐射防护,2012,32(2):72-76,87,6.基金项目
国防基础科研计划资助项目 （）
