中华医学超声杂志

应用化学 ›› 1991, Vol. 0 ›› Issue (6): 92-94.

• 研究简报 • 上一篇    下一篇

1,10-双(1' -苯基-3' -甲基-5' -氯代吡唑-4' -基)癸二酮-[1,10]对铁(Ⅲ)、钴(Ⅱ)和镍(Ⅱ)的萃取行为

卢文, 董学畅, 任孝芬, 马志红   

  1. 云南民族学院化学系, 昆明 650011
  • 收稿日期:1990-10-17 修回日期:1991-01-29 出版日期:1991-12-10 发布日期:1991-12-10
  • 基金资助:
    云南省应用基础研究基金

EXTRACTION OF IRON(Ⅲ),COBALT(Ⅱ)AND NICKLE(Ⅱ)WITH 1,10-BIS(1' -PHENYL-3' -METHYL-5' -OXOPYRAZOLE-4' -YL)-1,10-DECANEDIONE

Lu Wen, Dong Xuechang, Reng Xiaofeng, Ma Zhihong   

  1. Department of Chemistry, Yunnan Institute of the Nationalities, Kunming 850011
  • Received:1990-10-17 Revised:1991-01-29 Published:1991-12-10 Online:1991-12-10

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摘要： 1,10-双(1' -苯基-3' -甲基-5' -氧代吡唑-4' -基)癸二酮-[1,10](以下简称H2A)是近年来开发的一个新型螯合萃取剂。蒋次清等研究了本文标题化合物的同系物1,9-双(1' -苯基-3' -甲基-5' -氧代吡唑-4' -基)壬二酮-[1,9]对铁(Ⅲ)、钴(Ⅱ)和镍(Ⅱ)的萃取行为,发现它能将铁(Ⅲ)与钴(Ⅱ)和镍(Ⅱ)分离,但不能实现钴(Ⅱ)和镍(Ⅱ)的分离。本文研究表明,当上述化合物的主碳链中C从9个增加到10个后,在适当条件下能实现铁(Ⅲ)、钴(Ⅱ)和锦(Ⅱ)间的相互分离。

关键词: 铁, 钴, 镍, 萃取分离, 螯合萃取剂

Abstract: The extraction behavior of iron(Ⅲ), cobalt(Ⅰ) and nickle(Ⅰ) by title compound (abbre-viated as H2A) in chloroform, has been studied. In the solution of sodium nitrate and HAc--NaAc, H2A extracts iron(Ⅲ) and cobalt(Ⅰ), but doesn' t extract nickle(Ⅰ). The composi-tions of the extracted complexes were determined as Fe2A3 and CoA (H2A) respectively. Their pH1/2 values were found to be 2.6 and 4.8 and their extraction equilibrium constants were 1.31 and - 5.12 respectively. The title extractant promised to fulfil the separation betweeniron(Ⅲ), cobalt(Ⅰ) and nickle(Ⅰ).

Key words: iron, cobalt, nickle, extraction separation, chelating extractant

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