| 改性树脂CB-ACT富集离子型稀土矿浸出液实验研究 |
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| 引用本文： | 徐海波,张胜其,周洁英,李开中,王超,杨幼明.改性树脂CB-ACT富集离子型稀土矿浸出液实验研究[J].有色金属科学与工程,2017,8(3):108-113. |
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| 作者姓名： | 徐海波 张胜其 周洁英 李开中 王超 杨幼明 |
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| 作者单位： | 江西理工大学冶金与化学工程学院，江西 赣州 341000 |
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| 基金项目： | 国家高技术研究发展计划“863计划”资助项目2012AA061901 |
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| 摘 要： | 在Φ15 mm×130 mm吸附柱中，利用改性树脂CB-ACT对离子型稀土矿浸出液中RE3+和Al3+进行动态吸附实验研究，考察料液初始浓度、料液流速、吸附温度等因素对改性树脂CB-ACT吸附RE3+和Al3+的动态吸附曲线的影响.结果表明:动态吸附的最佳条件为料液初始浓度4 g/L、料液流速4 mL/min、吸附温度308 K，在该工艺条件下，改性树脂CB-ACT对RE3+和Al3+吸附效果较好.其次，使用0.8 mol/L的M（OH）n溶液对饱和吸附树脂进行淋洗，可选择性的将树脂上吸附的Al3+洗脱下来，与RE3+分离.在较好的淋洗工艺条件下，解吸液中Al2O3/REO的比值可低至0.34 %，稀土中的铝已基本去除.
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| 关 键 词： | 改性树脂 稀土浸出液 富集 除铝 |
| 收稿时间： | 2016-12-15 |
Enrichment of ionic rare earth's leaching solution by modified resin CB-ACT |
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| Affiliation: | School of Metallurgy and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China |
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| Abstract: | The modified resin CB-ACT was synthesized and used to adsorb RE3+ and Al3+ from the leaching solution in the Φ15 mm×130 mm adsorption column. The factors, including the initial solute concentration, the liquid flow rate, and the adsorption temperature were examined to develop a process for adsorbing RE3+ and Al3+ from the leaching solution in the dynamic adsorption experiment. The results show that the optimal conditions for the dynamic adsorption are initial solute concentration of 4 g/L, liquid flow rate of 4 mL/min, adsorption temperature of 308 K. Secondly, in order to selectively separate Al3+ from the resin which adsorbed RE3+ and Al3+, the 0.8 mol/L M(OH)n solution is used to elute the saturated adsorption resin. Under the optimum elution conditions, the ratio of Al2O3/REO in desorption solution can be as low as 0.34 %, and the aluminum has been basically removed completely. |
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