| NdFeB酸法生产Nd_2O_3废水的处理与资源化研究 |
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| 引用本文： | 赵谦,刘玉民,李体海,殷恒波,姜廷顺.NdFeB酸法生产Nd_2O_3废水的处理与资源化研究[J].环境科学与技术,2004,27(Z1):13-14. |
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| 作者姓名： | 赵谦 刘玉民 李体海 殷恒波 姜廷顺 |
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| 作者单位： | 1. 江苏大学化学化工学院,镇江 212013
2. 中国包装新技术有限公司,北京 100052 |
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| 基金项目： | 江苏大学高级人才基金资助 |
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| 摘 要： | 任何浓度的盐酸都可以与水共沸,根据这一原理,采用蒸发浓缩的方法回收高铁含量的草沉废水中的盐酸和氯化亚铁。石灰中和法适用于脱除低铁含量的洗水中的Fe2+。本方法在NdFeB酸法生产Nd2O3废水的工业化处理实践中获得了良好的效果,废水中的盐酸回收为稀盐酸,废水中的铁回收为氯化亚铁晶体产品。
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| 关 键 词： | 稀土 废水 盐酸 氯化亚铁 |
| 文章编号： | 1003-6504(2004)增-0013-03 |
| 修稿时间： | 2003年9月6日 |
Study on Wastewater Treatment and Resource in Manufacture of Nd2O3 from NdFeB |
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| ZHAO Qian,LIU Yu-min,LI Ti-hai,YIN Heng-bo,JIANG Ting-shun.Study on Wastewater Treatment and Resource in Manufacture of Nd2O3 from NdFeB[J].Environmental Science and Technology,2004,27(Z1):13-14. |
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| Authors: | ZHAO Qian LIU Yu-min LI Ti-hai YIN Heng-bo JIANG Ting-shun |
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| Institution: | ZHAO Qian~1,LIU Yu-min~2,LI Ti-hai~1,YIN Heng-bo~1,JIANG Ting-shun~1 |
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| Abstract: | Based on azeotropic characteristics of water and HCl, hydrochloric acid and FeCl_2 were recovered from high Fe~+_2 concentrated filtrate of oxalic neodymium in manufacture of Nd_2O_3 from NdFeB by evaporation and condensation. Lime neutralization was favourable for treatment of low Fe~+_2 concentrated wastewater. The method is successfully applied to industrial treatment and renewable of wastewater in the manufacture of Nd_2O_3 from NdFeB. |
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| Keywords: | rare earth wastewater hydrochloric acid FeCl_2 |
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