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hl-l zhuang zhi chu bu shi yan yan jiu
Qin Yunwen Xu Guangbi Li Youyi Ma Tengcai Liu Yukui Yang Hongru Zheng Yongzhen Lu Zhihong Ran Libo Li KehuaLuo Junline Guo Gancheng Shao Weiyi Yang Jinwei Qian Shangjie
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yang hua you de fan ying xing neng . yi bu tuo xiao fa zhi de de er yang hua you
Ge Qingren Kang Shifang The reactivity of solid depends upon its structure. In this paper;the structure of uranium dioxide prepared from urany] nitrate hydrate by one step denitration process and the improvement of its reactivity have been studied. The results show that this material may be a kind of porous aggregates which consist of hard microspheres. It is activated by oxidation method and considerable efficacy can be obtained. The untreated material reacts with anhydrous HF at 50’ for 90 minutes and the hydrofjuorina-tion conversion is only 68;0 The material treated by oxidation*activated method and reduced again into uranium dioxide;reacts with 40; HF at 430 for 35 minutes and the hydrofluorination conversion attains to 98; 0 The reactivity of the latter approaches to uranium dioxide via AUG.
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