| N_(235)净化稀土溶液废水净化回用的研究 |
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| 引用本文： | 张磊,柳召刚,许慧,代晓彬,李俊平.N_(235)净化稀土溶液废水净化回用的研究[J].有色金属(冶炼部分),2016(7):61-64. |
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| 作者姓名： | 张磊 柳召刚 许慧 代晓彬 李俊平 |
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| 作者单位： | 内蒙古科技大学材料与冶金学院,内蒙古科技大学材料与冶金学院,内蒙古科技大学材料与冶金学院,中国北方稀土集团冶炼分公司,中国北方稀土集团冶炼分公司 |
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| 摘 要： | 以稀土分离工艺中产生的含Zn~(2+)、Fe~(3+)的N235废水为研究对象,在控制pH=8的条件下,使用氢氧化钠为沉淀剂将Zn~(2+)和Fe~(3+)同时去除;通过优化工艺条件,将去除了Zn~(2+)和Fe~(3+)的废水酸化后重新返回生产工序,实现了废水的有效回用。废水中所含的氯化钠会影响其对N235中Zn~(2+)和Fe~(3+)的洗涤效果,但所得的氯化稀土产品质量完全符合技术要求。
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| 关 键 词： | N235 稀土萃取 废水处理 |
| 收稿时间： | 2016/2/15 0:00:00 |
| 修稿时间： | 2016/2/18 0:00:00 |
Study on Recycle of Waste Water from Extraction of Rare Earth by N235 |
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| Zhang Lei,Liu Zhaogang,Xu Hui,Dai Xiaobin and Li Junpin.Study on Recycle of Waste Water from Extraction of Rare Earth by N235[J].Nonferrous Metals(Extractive Metallurgy),2016(7):61-64. |
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| Authors: | Zhang Lei Liu Zhaogang Xu Hui Dai Xiaobin and Li Junpin |
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| Affiliation: | School of materials and metallurgy,Inner Mongolia University of Science and Technology,,,, |
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| Abstract: | N235 waste water containing Zn2 and Fe3 from rare earth extraction process was applied as research object. Zn2 and Fe3 ions can be removed at pH=8 from waste water by NaOH precipitant. Under the optimum conditions, the waste water without Zn2 and Fe3 can be recycled in production process. In spite of negative effect of NaCl in waste water on Zn2 and Fe3 removal, quality of rare earth chloride products well completely meets technical requirements. |
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| Keywords: | N235 rare earth extraction waste water treatment |
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