Influence of NaCl-CaCl2 on Decomposing REPO4 with CaO |
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| Authors: | Sun Wu Zhiying Bian Xue Gao Bo Wu Wenyuan Tu Ganfeng |
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| Affiliation: | aSchool of Materials & Metallurgy, Northeastern University, Shenyang 110004, China |
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| Abstract: | The influence of NaCl-CaCl2 on thermal decomposition of REPO4(RE: Ce, La, Nd, Th) with CaO was studied. The heat decomposing process of REPO4 was tested with TG-DTA experiments. The results showed that the decomposition temperature of REPO4 with CaO was reduced because of adding NaCl-CaCl2 mixture (NaCl:CaCl2 = 1:1). The influence of the addition of NaCl-CaCl2, roasting temperature and roasting time on decomposition ratio of REPO4 with CaO was studied. The results showed that the decomposition ratio of REPO4 with CaO was 79% when the addition percentage of NaCl-CaCl2, was 10%, the roasting temperature was 150°C, and the roasting time was 1 h. |
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| Keywords: | NaCl-CaCl2 CaO REPO4 decomposition ratio rare earths |
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