高等学校化学学报

高等学校化学学报 ›› 1980, Vol. 1 ›› Issue (2): 23.

• 论文 • 上一篇    下一篇

1-苯基-3-甲基-4-苯甲酰基-吡唑酮-5与钍及稀土元素的作用(Ⅲ)--对稀土元素的萃取及固态络合物组成与性质的研究

刘建民, 杨汝栋, 马太儒   

  1. 兰州大学化学系
  • 收稿日期:1980-01-18 出版日期:1980-12-24 发布日期:1980-12-24

ACTION OF 1-PHENYL-3-METHYL -4-BENZOYL-PYRAZOLONE-5WITH THORIUM AND RARE-EARTHS-Ⅲ--STUDIES ON THE EXTRACTION OF RARE-EARTHS AND THE COMPOSITION AND PROPERTY OF SOLID COMPLEX COMPOUNDS

Liu Jianmin, Yang Rudong, Ma Tairu   

  1. Department of Chemistry, Lanzhou University
  • Received:1980-01-18 Online:1980-12-24 Published:1980-12-24

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摘要： 本文研究了PMBP-CHCl2与Ln(NO3)3-H2O(Ln=La、Ce、Eu、Yb和Lu)的作用。发现,当PMBP浓度≥0.2M时,分配比与氢离子浓度的三次方成反比,与PMBP浓度的四次方成正比,全部稀土离子以LnA3·HA;形式被萃入有机相,其萃取平衡常数(lgK)分别为La(-6.20)、Ce(-4.30)Eu(-3.62)、Yb(-2.90)及Lu(-3.20)。在萃取条件下,除Pm未经研究外,其余三价稀土元素经萃取后,从有机相都获得了与PMBP形成的固态络合物,其组成除Lu外均为LnA3·HA,并对它们的晶形、红外光谱和热谱进行了研究。

Abstract: In this paper we have studied the action of Ln(NO)3(Ln=La,Ce,Eu,Yb,and Lu) with PMBP-CHCL3.It was found that when the concentration of PMBP≥0.2M the distribution ratio is in inverse proportion to the third power of the concentration of hydrogen ions and in direct proportion to the fourth power of the concentration of PMBP,all the rare-earth ions are extracted into organic phase in the form of LnA3·HA,their extraction equilibrium constants(lgK) equal to La(-6.20),Ce(-4.30),Eu(-3.62),Yb(-2.90) and Lu(-3.20),respectively.Under the condition of extraction,all the rare-earth solid complexes (except pm) are obtained from organic phase,their composition is LnA3HA (LuA3for Lu) their crystals,infrared spectra and thermalgraph are also studied.In this paper we have studied the action of Ln(NO)3(Ln=La,Ce,Eu,Yb,and Lu) with PMBP-CHCL3.It was found that when the concentration of PMBP≥0.2M the distribution ratio is in inverse proportion to the third power of the concentration of hydrogen ions and in direct proportion to the fourth power of the concentration of PMBP,all the rare-earth ions are extracted into organic phase in the form of LnA3·HA,their extraction equilibrium constants(lgK) equal to La(-6.20),Ce(-4.30),Eu(-3.62),Yb(-2.90) and Lu(-3.20),respectively.Under the condition of extraction,all the rare-earth solid complexes (except pm) are obtained from organic phase,their composition is LnA3HA (LuA3for Lu) their crystals,infrared spectra and thermalgraph are also studied.

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