| 从碳酸轻稀土提取二氧化铈 |
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| 引用本文： | 姚锦麟.从碳酸轻稀土提取二氧化铈[J].曲阜师范大学学报,1992,18(4):71-74. |
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| 作者姓名： | 姚锦麟 |
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| 作者单位： | 漳州师范学院化学系 363000 |
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| 摘 要： | 本实验，首先根据铈易被氧化成四价铈的性质，使Ce(OH)3lfnywx o C(OH)4.须稀酸（PH≈2．5）中，Ce(OH)4不溶解，而E（OH）3能溶解，使铈与其他轻稀土元素得到初级分离，再根据四价铈容易被磷酸三丁酯（TBP）萃取的性质，使铈得到进一步纯化，后经草酸沉淀、过滤、灼烧得到纯的二氧化铈。
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| 关 键 词： | 碳酸轻稀土 萃取 二氧化铈 |
EXTRACT OF CURIUM DIOXIDE FROM THE LIGHT RARE EARTH CARBONATE |
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| Yao Jinlin.EXTRACT OF CURIUM DIOXIDE FROM THE LIGHT RARE EARTH CARBONATE[J].Journal of Qufu Normal University(Natural Science),1992,18(4):71-74. |
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| Authors: | Yao Jinlin |
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| Institution: | Yao Jinlin Department of Chemistry,Zhangzhou Normal College.363000,Zhangzhou,Fujian,PRC ~: : |
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| Abstract: | The experiment, first, in accordance with the property of cerous ion, that is liable change into cerie ion. Change Ce(OH)_3 into Ce(OH)_4. Ceric hydroxide does not dissolve in dilute acid (pH=2.5 about). Thus, separate cerium from the other light rare earth. Second, in accordance with the property of ceric ion, that is liable extracted for the TBP. Purification of cerium is come true. Last, cerous ion is precipitated with oxalic acid, therefore, cerium oxalate can be obtained. On strong heat, change cerium oxalate precipitate into cerium dioxide. |
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| Keywords: | light rare earth carbonate extraction cerium dioxide |
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