高等学校化学学报

高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (9): 1153.

• 论文 •    下一篇

伯胺N1923萃取柠檬酸的研究

王志华, 高自立, 孙思修, 沈静兰   

  1. 山东大学化学系, 济南, 250100,
  • 收稿日期:1991-08-26 修回日期:1991-11-06 出版日期:1992-09-24 发布日期:1992-09-24
  • 通讯作者: 高自立

Extraction of Citric Acid with Primary Amine N1923

WANG Zhi-Hua, GAO Zi-Li, SUN Si-Xiu, SHEN Jing-Lan   

  1. Department of Chemistry, Shandong University, Jinan, 250100
  • Received:1991-08-26 Revised:1991-11-06 Online:1992-09-24 Published:1992-09-24

PDF (PC)

被引次数

43

摘要： 以伯醇A1416作有机相调节剂(15%,V/V),对照考察了N1923-煤油-A1416(15%,V/V)溶液对HCI、HNO3和HClO4的萃取,发现在相同条件下N1923萃取酸的顺序为HClHNO3HClO4>H3A.讨论了用盐酸反萃取含H3A有机相的可能性.

关键词: 柠檬酸, 伯胺N1923, 萃取平衡

Abstract: The extraction of citric acid(H3A) from its aqueous solution with primary amine N1923(B) in kerosene was studied at 298±1K.The extraction equilibrum can be expressed as B(o)+iH3AB·iH3A (i=2/3;1).15%(V/V) high-carbon alcohol Al416(Chinese trade mark) was used as a modifier in organic phase.It was found that the probable component of the extracted complexes were B·(2/3)H3A and B·H3A which were confirmed by the mathods of isomolar series,saturatrion extraction,plot n/[H3A] versus [H3A] and the infrared spectra.The extraction capacity of inorganic acids and citric acid by N1923 is in the order of HCl HNO3HClO4>H3A.The possibility of stripping of citric acid from organic phase with aqueus solution containing hydrochloride is discussed.

Key words: Extraction equlibrium, Citric acid, Primary amine N1923

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