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投稿时间：2012-07-30 修订日期：2012-08-01
投稿时间：2012-07-30 修订日期：2012-08-01
中文摘要: 采用离子交换色层法用氨基膦酸螯合树脂对重稀土铥、镱、镥富集物进行动态吸附和淋洗分离研究，考察了淋洗剂浓度、酸度、淋洗液流速、温度等因素对分离的影响。结果表明，在吸附柱中，以0.1 mL/(cm2?min)的流速进料时能得到较大的吸附率；在淋洗液流速为0.3 mL/(cm2?min)、温度30 ℃的条件下，用pH=8.0、浓度0.02 mol/L的EDTA淋洗重稀土富集物，可实现铥、镱、镥三者的完全分离。
Abstract:The dynamic absorption and elution of heavy rare earth (thulium, ytterbium and lutetium rich material) were studied by ion exchange chromatography with amino methylene phosphonic acid resin. The effects of concentration of stripping agents, acidity, effluent velocity and temperature on elution of Tm-Yb-Lu were investigated. The results show that the absorption rate is improved with the raw liquid velocity of 0.1 mL/ (cm2?min). Tm, Yb and Lu could be separated from each other completely under the conditions including flow rate of 0.3 mL/(cm2?min), temperature of 30 ℃, pH of 8.0, and EDTA concentration of 0.02 mol/L.
keywords: amino methylene phosphonic acid resin heavy rare earth ion exchange chromatography separation Tm Yb Lu
文章编号： 中图分类号： 文献标志码：
基金项目:江西省自然科学基金资助项目(20114BAB206031)
| Author Name | Affiliation | |
| JIAO Yunfen | Jiangxi University of Science and Technology | yyjyf@163.com |
| HE Xiaolin | ||
| LIAO ChunFa | ||
| JIANG PingGuo |
引用文本：
焦芸芬,何小林,廖春发,姜平国.氨基膦酸螯合树脂离子交换色层法分离重稀土的研究[J].有色金属（冶炼部分）,2012(12):29-32.
JIAO Yunfen,HE Xiaolin,LIAO ChunFa,JIANG PingGuo.Study on Separation of Heavy Rare Earth by Ion Exchange Chromatography with Amino Metylene Phosphonic Acid Resin[J].Nonferrous Metals (Extractive Metallurgy),2012(12):29-32.
焦芸芬,何小林,廖春发,姜平国.氨基膦酸螯合树脂离子交换色层法分离重稀土的研究[J].有色金属（冶炼部分）,2012(12):29-32.
JIAO Yunfen,HE Xiaolin,LIAO ChunFa,JIANG PingGuo.Study on Separation of Heavy Rare Earth by Ion Exchange Chromatography with Amino Metylene Phosphonic Acid Resin[J].Nonferrous Metals (Extractive Metallurgy),2012(12):29-32.
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