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›› 2001, Vol. 1 ›› Issue (4): 0-0.

• 4 •    

叔胺萃取分离钴(II)、铁(II)

周学玺, 杜晓宁, 朱屯   

  1. 中国科学院化工冶金研究所，北京100080
  • 出版日期:2001-08-20 发布日期:2001-08-20

Weak Ferromagnetism in Perovskite-type Bismuth Ferrite Nanoparticles

HE Hai-ying, KOU Xin-li, LI Jian-gong   

  1. Institute of Chemical Metallurgy, Chinese Academy of Sciences, Beijing 100080，China
  • Online:2001-08-20 Published:2001-08-20

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摘要： 研究了不必预先氧化二价铁，直接用叔胺从氯化物溶液中萃取分离钴(II)、铁(II)的新方法. 考察了不同改性剂对叔胺萃取钴(II)、铁(II)的影响以及各种因素对钴(II)、铁(II)萃取、洗涤及反萃的影响. 提出了用叔胺萃取分离钴(II)、铁(II)的最佳工艺参数.

关键词: 萃取分离, 钴(II), 铁(II), 叔胺

Abstract: The effects of modifiers on the extraction of cobalt(II) and iron(II) with tertiary amine were investigated. It was found that additional modifiers, oxygen-containing organic compound(HA3), had the synergism with tertiary amine for cobalt extraction and also changed the property of the iron extraction. The loaded iron(II) can not be stripped by dilute acidic solution. Cobalt(II) and iron(II) could be separated by using scrubbing and stripping. The new technology of separation of cobalt(II) and iron(II) extractive, with tertiary amine from chloride solution was proposed, which avoids the preoxidation of iron(II).

Key words: ferrite, nanoparticle, weak ferromagnetism

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