| 酸性含砷冶金废水中铁的回收 |
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| 引用本文： | 刘丽娟,李建中,付彦彪,田彦文.酸性含砷冶金废水中铁的回收[J].材料与冶金学报,2012,11(1):75-78. |
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| 作者姓名： | 刘丽娟 李建中 付彦彪 田彦文 |
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| 作者单位： | 东北大学材料与冶金学院,沈阳,110819 |
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| 基金项目： | 国家重大科技成果转化项目(2060403) |
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| 摘 要： | 以(NH4)2HPO4作为沉淀剂,通过选择性沉淀,进行酸性含砷冶金废水回收铁及砷铁分离研究,考察了pH、搅拌速度、温度、磷铁摩尔比等因素对铁的回收及砷铁有效分离的影响,得到合适的工艺条件为:pH2.0,搅拌速度500 r·min-1,温度50℃,磷铁比n(P)/n(Fe)为3.5.此条件下铁的回收率99.83％,液相中砷的存留率98.64％,实现了铁的回收和砷铁的有效分离.
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| 关 键 词： | 含砷废水 铁回收 (NH4)2HPO4 |
Recovery of iron from the acid waste water containing arsenic |
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| LIU Li-juan
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LI Jian-zhong
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FU Yan-biao
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TIAN Yan-wen.Recovery of iron from the acid waste water containing arsenic[J].Journal of Materials and Metallurgy,2012,11(1):75-78. |
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| Authors: | LIU Li-juan LI Jian-zhong FU Yan-biao TIAN Yan-wen |
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| Affiliation: | (School of Materials and Metallurgy,Northeastern University,Shenyang 110819,China) |
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| Abstract: | Recovery of iron and separation of arsenic from the acid waste water containing arsenic were studied by using diammonium hydrogen phosphate as a precipitator through selective precipitation.The effects of pH,stirring speed,temperature and the ratio of phosphorus to iron on the recovery of iron and separation of arsenic were inspected.The optimal conditions were determined as follows: pH is 2.0,stirring speed is 500 r · min-1,temperature is 50 ℃,the ratio of phosphorus to iron is 3.5.The recovery ratio of iron is 99.83%,the residual ratio of arsenic in liquid phase is 98.64%.Under these conditions,effective recovery of iron and separation of arsenic are realized. |
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| Keywords: | arsenic wastewate iron recovery (NH4)2HPO4 |
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