东北大学学报:自然科学版 ›› 2018, Vol. 39 ›› Issue (10): 1428-1432.DOI: 10.12068/j.issn.1005-3026.2018.10.012

• 材料与冶金 • 上一篇    下一篇

P204/4PC新协萃体系萃取分离镍与锰镁钙

曾理, 孙振, 关文娟, 张贵清   

  1. (中南大学 冶金与环境学院, 湖南 长沙410083)
  • 收稿日期:2017-06-23 修回日期:2017-06-23 出版日期:2018-10-15 发布日期:2018-09-28
  • 通讯作者: 曾理
  • 作者简介:曾理(1981-),男,湖南常德人,中南大学副教授; 张贵清(1969-),男,安徽安庆人,中南大学教授.冯明杰(1971-), 男, 河南禹州人, 东北大学副教授; 王恩刚(1962-), 男, 辽宁沈阳人, 东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(51171041).国家自然科学基金青年基金资助项目(NSFC51404297).

Separation of Nickel from Manganese, Magnesium and Calcium Using Synergistic Solvent Extraction System of P204/4PC

ZENG Li, SUN Zhen, GUAN Wen-juan, ZHANG Gui-qing   

  1. School of Metallurgy and Environment, Central South University, Changsha 410083, China.
  • Received:2017-06-23 Revised:2017-06-23 Online:2018-10-15 Published:2018-09-28
  • Contact: ZENG Li
  • About author:-
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摘要: 采用一种新的二元协萃体系P204/4PC对萃取分离镍与锰、镁、钙进行了研究.考察了有机相配比、平衡pH、平衡时间等因素对萃取分离的影响,并绘制了镍萃取与反萃等温线.结果表明,采用1.25mol/L 4PC(L)+0.25mol/L P204(HA)组成的有机相,经过5级模拟逆流萃取,镍的萃取率达到98.7%,其他杂质金属的萃取率基本都在5%以下.负载有机相经过三级逆流反萃,镍的反萃率达到98.2%,反萃后有机相中镍的质量浓度小于0.1g/L.

关键词: P204, 4PC, 镍, 锰, 镁, 钙, 协同萃取

Abstract: The separation of nickel from manganese, magnesium and calcium by solvent extraction with new synergistic system was studied. The effects of organic phase ratio, equilibrium pH value and equilibrium time on extraction separation were investigated, and nickel extraction and stripping isotherms were plotted. The results showed that the organic phase composed of 1.25mol/L 4PC(L)+0.25mol/L P204(HA)was used after 5 levels of countercurrent extraction, the extraction rate of nickel reached 98.7%, and the extraction rate of other impurity metals were nearly below 5%. The loaded organic phase was subjected to a three-stage countercurrent stripping, the stripping rate of nickel reached 98.2%, and the content of nickel in the organic phase was less than 0.1g/L.

Key words: P204, 4PC, nickel, manganese, magnesium, calcium, synergistic solvent extraction

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