期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

Molten solvent extraction behavior of trivalent La, Sm, Dy, and Yb with tri-n-butyl phosphate into molten paraffin wax at 60 ℃

Molten solvent extraction behavior of trivalent La, Sm, Dy, and Yb with tri-n-butyl phosphate into molten paraffin wax at 60 ℃
下载PDF
导出
摘要 The extraction behavior of La^3+, Sm^3+, Dy^3+, and Yb^3+ insodium acetate-acetic acid medium was studied with tri-N-butylphosphate (TBP) at 60 deg. C using paraffin wax as a diluent. Theextraction percentage is greater than 85/100 in the pH range of 6 to8. The result of slope analysis method indicates that thecompositions of the extracted species are different between the lightand heavy rare ear this. The formula of the extracted species isfound to be La (TBP) (OH) (Ac)_2 for La^3+ and Yb (TBP) (OH)_3 forYb^3+. The effects of extracting time, the concentration of TBP inthe organic phase and salts on the extraction efficiency were alsodiscussed. The extraction behavior of La^3+, Sm^3+, Dy^3+, and Yb^3+ insodium acetate-acetic acid medium was studied with tri-N-butylphosphate (TBP) at 60 deg. C using paraffin wax as a diluent. Theextraction percentage is greater than 85/100 in the pH range of 6 to8. The result of slope analysis method indicates that thecompositions of the extracted species are different between the lightand heavy rare ear this. The formula of the extracted species isfound to be La (TBP) (OH) (Ac)_2 for La^3+ and Yb (TBP) (OH)_3 forYb^3+. The effects of extracting time, the concentration of TBP inthe organic phase and salts on the extraction efficiency were alsodiscussed.
作者 PENG Bo, GAO Jinzhang, FAN Haiyan, KANG Jingwan, and YANG Wu Department of Chemistry, Northwest Normal University, Lanzhou 730070, China
出处 《Rare Metals》 SCIE EI CAS CSCD 2002年第1期7-11,共5页 稀有金属（英文版）
基金 the project KJCXGC-01 of Northwest Normal University China.
关键词 solvent extraction rare earth TBP Paraffin wax solvent extraction rare earth TBP Paraffin wax
分类号 O658 [理学—分析化学]
  • 相关文献

参考文献11

  • 1Spedding F.H. and Daane A.H., The Rare Earths, 1 st ed. [M], J. Wiley Press, New York, 1961: 38-45.
  • 2Hesford E., Jackson E.E., and Mckay H.A.C., Tri-nbutyl phosphate as an extracting agent for inorganic nitrates-VI [J], J. Inorg. Nucl. Chem., 1959, 9: 279.
  • 3Gao J.Z., Hu G.L., Kang J.W., and Bai G.B., 1-12-pyridylazo)-2-naphthol (PAN) as extractant in solidliquid extraction of some trivalent rare earth elements [J], Talanta, 1993, 40: 195.
  • 4Gao J.Z., Hu G.L., Fan H.Y., and Kang J.W., Thermodynamic investigations of aqueous-molten paraffin wax liqiud-liquid extractions and synergistic extractions of some trivalent rare earth elements [J],Tanlanta, 1994, 41: 541.
  • 5Gao J.Z., Pan Z.W., Du X.Z., Kang J.W., and Bai G.B., Extraction behavior of rare earths with I-phenyl-3-methyl-4-benzoyl-prazolone-5 using solidliquid extraction technique [J], Rare Metals, 1993,12: 198.
  • 6Peppard D. F., Driscoll W.J., Sironen R.J., and Mccarty S., Nonmonotonic ordering of lanthanides in trbutyl phosephate-nitric acid extraction system[J], J. Inorg. Nucl. Chem., 1957, 4: 326.
  • 7Yoshida H., Solvent extraction studies ofthiocyanate complex of the lanthanides [J], J. Inorg. Nucl. Chem.,1962, 24: 1257.
  • 8Zhao S., Yang W., and Gao J.Z., Solid-liquid extraction behavior of rare earths by tri-n-butyl phosphate at high temperature [J], Laboratory Robotics and A utomation, 1999, 11: 273.
  • 9Zhang R.H. and Yao X.K., Synthesis and characteristic studies of thiocyanate rare earths [J], Chemical Reagents (in Chinese), 1982, 4: 30.
  • 10Sun S.S., Hu X.F., Wang J.S., Xu X.Q., and Wang C.F., Solvent extraction study of rare earth [J], Chemical Reagents (in Chinese), 1981, 40: 1.
Rare Metals
2002年 第1期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部