| 电镀污泥中镍的回收技术研究 |
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| 引用本文： | 张广柱,童张法,高大明. 电镀污泥中镍的回收技术研究[J]. 云南环境科学, 2010, 29(3): 67-70 |
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| 作者姓名： | 张广柱 童张法 高大明 |
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| 作者单位： | 张广柱,ZHANG Guang-zhu(梅州市环境监测中心站,广东,梅州,514071);童张法,TONG Zhang-fa(广西大学化学化工学院,广西,南宁,530004);高大明,GAO Da-ming(深圳市工业废物处理站贵金属回收部,广东,深圳,518049) |
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| 摘 要： | 采用30％N902从除杂后的电镀污泥氨浸液中回收金属镍。在萃取原料液pH=9，相比（A／O）=2：1，反应时间为5min条件下可使镍的萃取率达到99％。负载有机相经水洗后，用2mol／L A／O=1：1的硫酸进行反萃，反萃时间为30min，反萃级数为8级，得到产品硫酸镍。硫酸镍溶液中镍离子含量〉90g／L，其它杂质达到产品质量要求。
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| 关 键 词： | 电镀污泥 镍回收 氨浸 N902 萃取 |
Study on Recovery Technology of Nickel from Electroplating Sludge |
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| ZHANG Guang-zhu,TONG Zhang-fa,GAO Da-ming. Study on Recovery Technology of Nickel from Electroplating Sludge[J]. Yunnan Environmental Science, 2010, 29(3): 67-70 |
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| Authors: | ZHANG Guang-zhu TONG Zhang-fa GAO Da-ming |
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| Affiliation: | 1. Meizhou Environmental Monitoring Station, Meizhou Guangdong 514071 China) |
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| Abstract: | The recovery of nickel from electroplating sludge in ammonia leaching solution after removing the impurity is conducted by using 30% N902. Under the condition of pH as 9 with 2：1 rate of compared （A/O） within 5 minutes of reaction time, the extraction rate of nickel can meet 99%. At the meantime, the stripping ratio of nickel from loaded organic phase after water bath is 8 level in 30 minutes when the solution of 2 mol/L sulphuric acid with 1 ： 1 of （A/O） rate was used as stripping agent. The nickelous sulfate is abtained as the stripping by - product. The content of nickel ion in the nickelous sulfate solution is over 90g/L which can meet the quality requirement with less content of other impurities. |
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| Keywords: | N902 |
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