| RECl3与NH4HCO3的沉淀反应及伴生杂质的共沉淀行为 |
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| 引用本文： | 李永绣,何小彬,辜子英,胡平贵.RECl3与NH4HCO3的沉淀反应及伴生杂质的共沉淀行为[J].稀土,1999,20(2). |
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| 作者姓名： | 李永绣 何小彬 辜子英 胡平贵 |
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| 作者单位： | 南昌大学稀土工程技术研究中心,江西,南昌,330047 |
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| 基金项目： | 国家自然科学基金,江西省自然科学基金 |
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| 摘 要： | 本文通过对沉淀过程的ｐＨ值变化特征研究和沉淀物的组成分析，确定了ＮＨ４ＨＣＯ３与ＲＥＣｌ３的沉淀反应。研究了伴生金属离子Ａｌ３＋、Ｆｅ２＋、Ｍｎ２＋、Ｃａ２＋、Ｍｇ２＋随稀土的共沉淀行为，讨论了杂质离子对产品纯度的影响。
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| 关 键 词： | 稀土 碳酸氢铵 沉淀反应 |
Precipitation Reaction of RECl3 with NH4HCO3 and Co-Precipitation Behavior of Accompanying Impurity lons |
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| Li Yongxiu,He Xiaobin,Gu Ziying,Hu Pinggui.Precipitation Reaction of RECl3 with NH4HCO3 and Co-Precipitation Behavior of Accompanying Impurity lons[J].Chinese Rare Earths,1999,20(2). |
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| Authors: | Li Yongxiu He Xiaobin Gu Ziying Hu Pinggui |
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| Abstract: | The precipitation reaction of rare earth ions with ammonium bicarbonate were determinated by the study of pH value change and the composition analysis of precipitate.Based on the effects of impurity ions on the product purity,the co precipitation behaviour of Al 3 ,Fe 3 ,Mn 2 ,Ca 2 ,Mg 2 and Cl - with rare earth carbonate was investigated. |
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| Keywords: | rare earth ammonium bicarbonate precipitation reaction co precipitation |
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