| 从粗硫酸镍溶液中选择性萃取回收铜的研究 |
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| 引用本文： | 裴晓东,钱有军.从粗硫酸镍溶液中选择性萃取回收铜的研究[J].金属矿山,2019(6):105-108. |
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| 作者姓名： | 裴晓东 钱有军 |
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| 作者单位： | 中钢集团安徽天源科技股份有限公司,安徽马鞍山,243000;中钢集团安徽天源科技股份有限公司,安徽马鞍山,243000 |
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| 摘 要： | 采用Lix984N-煤油-H2SO4萃取体系,从粗硫酸镍溶液中选择性回收铜,研究了初始pH值、萃取剂体积分数、相比O/A等对铜萃取的影响。结果表明,在初始pH值为2.4、萃取剂体积分数为25%、相比O/A为1∶1的条件下,经一级萃取即可获得铜萃取率为98.19%,镍萃取率仅为0.68%的良好指标。以H2SO4浓度为180g/L溶液作反萃剂,在相比O/A为1∶1条件下经一级反萃,铜的反萃率为99.05%。铜以CuSO4溶液的形式回收,可以作为制备硫酸铜晶体或电积制备电解铜的原料。
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| 关 键 词： | 粗硫酸镍溶液 溶剂萃取 Lix984N 铜 |
Selective Extraction and Recovery of Copper from Crude Nickel Sulfate Solution |
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| Pei Xiaodong,Qian Youjun.Selective Extraction and Recovery of Copper from Crude Nickel Sulfate Solution[J].Metal Mine,2019(6):105-108. |
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| Authors: | Pei Xiaodong Qian Youjun |
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| Affiliation: | (Sinosteel Anhui Tianyuan Technology Co.,Ltd.,Maanshan 243000,China) |
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| Abstract: | Copper was selectively recovered from crude nickel sulphate solution by extraction system of Lix984N-Kero sene-H2SO4. The effects of initial pH value,Lix984N volume fraction and phase ratio O/A on selective extraction of copper were studied. The results show that single-stage extraction at initial pH of 2.4, volume concentration of the extractant is 25% and phase ratio( O/A) of 1∶ 1, the extraction rate of copper is up to 98.19% and the extraction rate of nickel only at 0.68%. Af ter that, a single-stage stripping with 180 g /L sulfuric acid and phase ratio of 1∶ 1 resulted in the stripping rate of copper up to 99.05%. Copper is recovered in the form of CuSO4 solution and can be used as raw material for preparation of copper sulfate crystals or electrowinning of electrolytic copper. |
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| Keywords: | Crude nickel sulfate solution Solvent extraction Lix984N Copper |
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