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›› 2001, Vol. 1 ›› Issue (4): 0-0.

• 4 •    

阴离子交换色谱法分离含钴溶液中锌、镉、铜等杂质

王艳，周春山，王歆燕   

  1. 中南工业大学化学化工学院，湖南 长沙 410083
  • 出版日期:2001-08-20 发布日期:2001-08-20

Mechanism of Extracting Zinc and Cadmium with Thiophosphoric

ZHANG Da-li1, KE Jia-jun2 , LU Li-zhu2   

  1. Col. Chem. and Chem. Eng., Central South University of Technology, Changsha, Hunan 410083, China
  • Online:2001-08-20 Published:2001-08-20

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被引次数

4

摘要： 采用阴离子交换色谱法，研究了某锌厂冶炼废渣的硫酸化焙砂浸出液中钴与锌、镉、铜等杂质离子的分离工艺，确定了最佳工艺参数：将料液配制成含2 mol/L Cl–1和0.1 mol/L Na2SO3的溶液，调节pH值为 4.5，搅拌数分钟，料液pH值降低至 4.0后，用201?7阴离子交换色谱柱进行分离，柱后流出液中锌、镉、铜等杂质的含量达到钴冶金工艺要求，钴的损失为0.7%左右.

关键词: 废渣, 阴离子交换色谱法, 锌, 镉, 铜

Abstract: A new anion-exchange chromatographic method was developed for the separation of cobalt from zinc, cadmium and copper. Experimental results showed that, in a 2 mol/L sodium chloride, 0.1 mol/L sodium sulphite and initial pH 4.5 solution, copper(II) was reduced to copper(I) and pH was decreased to 4.0. As the solution was driven through a 201′7 anion-exchange chromatographic column, zinc, cadmium and copper were effectively separated and the loss of cobalt was about 0.7%. This method is simple, rapid and effective, and has been successfully applied to the separation of cobalt in leach liquor of a zinc plant residue after sulphated calcination.

Key words: thio-substituted organophosphorus acid, primary amine N1923, solvent extraction, zinc, cadmium, reversed micelle

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