中华医学超声杂志

应用化学 ›› 1995, Vol. 0 ›› Issue (3): 57-60.

• 研究论文 • 上一篇    下一篇

伯胺N1923萃取铬(Ⅵ)的研究

葛战勤1, 杨永会2, 孙思修2, 沈静兰2   

  1. 1. 河北轻化工学院, 石家庄;
    2. 山东大学化学系, 济南 250100
  • 收稿日期:1994-08-16 修回日期:1994-12-30 出版日期:1995-06-10 发布日期:1995-06-10

Sudy on the Extraction of Chromium(Ⅵ)by Primary Amine N1923

Ge Zhanqin1, Yang Yonghui2, Sun Sixiu2, Shen Jinglan2   

  1. 1. Hebei Institute of Chemical Technolog and Light Industry, Shijiazhuang;
    2. Department of Chemistry, Shandong University, Jinan 250100
  • Received:1994-08-16 Revised:1994-12-30 Published:1995-06-10 Online:1995-06-10

PDF

389

被引次数

25

摘要： 研究了伯胺N1923从硫酸介质中对铬(Ⅵ)的萃取,分配法、红外光谱法等的研究结果表明:萃合物组成为RNH3·HCr2O7和(RNH3)2Cr2O7,求得了相关萃取反应的平衡常数,同时对含铬(Ⅵ)有机相进行了初步反实验,结果表明,以NaOH溶液进行的反萃效果较好.

关键词: 铬, 伯胺N1923, 萃取

Abstract: The extraction of chromium(Ⅵ)from sulfate medium with primary amine N1923 has been studied by the distribution method and IR spectrography at 298K.The resultsshowed the extraction reactions as follows:RNH2(0)+2H++Cr2O72-=RNH3·HCr2O7 K1.1 2RNH2(0)+2H++Cr2O72-=(RNH3)2Cr2O7 K2.1 logK1.1=1.83 logK2.1=3.99

Key words: chromium, primary amine N1923, extraction

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