Phase equilibria of CaO-SiO2-Gd2O3 system and the feasibility of rare-earth recovery
Phase equilibria of CaO-SiO2-Gd2O3 system and the feasibility of rare-earth recovery
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CaO-SiO2-Gd2O3体系的相平衡及稀土回收的可行性
DOI:
10.1016/j.ceramint.2018.06.006
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发表时间:
2018-09
影响因子:
5.2
通讯作者:
Qu Tao
中科院分区:
文献类型:
--
作者:
Zhi Wenke;Wang Fei;Yang Hongwei;Yang Bin;Tian Yang;Deng Yong;Qu Tao
Phase equilibria of the CaO-Gd2O3-SiO2slag system at 1773 K and 1873 K were investigated by characterizing equilibrated samples with electron probe microanalysis (EPMA). Four three-phase equilibria and five two-phase equilibria are formed in the CaO-Gd2O3-SiO2ternary system at 1773 K in argon atmosphere. While three three-phase equilibria, six two-phase equilibria and one liquid phase are presented in the system at 1873 K. The isothermal section of the phase diagram is thereafter constructed based on the experimental results. The feasibility of the rare earth recovery is also discussed based on the phase relations.
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