Role of organic solvents and characterization of the extracted species in the synergistic extraction of lanthanoids(III)

有机溶剂在协同萃取镧系元素(III)中的作用和萃取物的表征

• 批准号: 11640614
• 负责人: HASEGAWA Yuko
• 金额: $ 1.86万
• 依托单位: Science University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11640614/
• 关键词: Solvent extraction; hydration number; formation constants; Lanthanoid(III) complexes; synergistic effect; β-diketone; Lewis bases; water in organic solvents; 錯生成熱; 有機溶媒

In order to discuss the details of synergistic extraction of lanthanoids(III) with beta-diketones (TTA and pivaloyltrifluoroacetone) and aromatic amines, the residual hydration numbers of lanthanoids(III) in the beta-diketonato chelates and the adducts of the chelates with the amine, and the complexation heat as well as the adduct formation constants have been determined. In addition, the interaction between the donor atom in the amine and the acceptor atom in organic solvents such as H in chloroform has been examined from IR spectra measured.

为了探讨β-二酮（TTA和新戊酰三氟丙酮）与芳香胺协同萃取镧系元素的细节，测定了镧系元素在β-二酮螯合物及其与芳香胺的加合物中的剩余水合数、络合热以及加合物形成常数。此外，从测定的红外光谱中考察了胺中的给体原子与有机溶剂如氯仿中的H中的受体原子之间的相互作用。

项目成果

Y.Hasegawa, M.Miratsu, G.R.Choppin: "Dehydration from tris [β-diketonato] lanthanoids (III) on the 1, 10-phenanthroline adduct formation across lanthanoid series"Anal. Chim. Acta. 428. 149-153 (2001)

Y.Hasekawa，M.Miratsu，G.R.Choppin：“三 [β-二酮] 镧系元素 (III) 对 1, 10-菲咯啉加合物形成的镧系元素的脱水”Anal. 428。 149-153 (2001) ）

T.Ito, Y.Hasegawa: "Some Consideration about Synergistic Extraction Behavior of Rare Earths (III) with Pivaloyltrifluoroacetone and Neutral Bidentate Ligands"Solv. Extr. Res. Dev. Japan. 8. 47-62 (2001)

T.Ito，Y.Hasekawa：“关于稀土（III）与新戊酰三氟丙酮和中性二齿配体协同萃取行为的一些考虑”Solv。

Y.Hasegawa,M.Miratsu,T.Kondo: "Trend of variation of hydration number of tris [β-diketonato] lanthanoids(III) in chloroform across lanthanoid series"Inorg.Chim.Acta. 303. 291-294 (2000)

Y.Hasekawa、M.Miratsu、T.Kondo：“氯仿中三[β-二酮]镧系元素(III) 的水合数在整个镧系元素系列中的变化趋势”Inorg.Chim.Acta 303. 291-294 (2000)。

I. Matsubayashi, Y. Hasegawa: "Thermodynamic Consideration for solvent effects in the synergistic extraction of. eurcpium(III) with pivaloyltrifluoroacetone and 1,10-phenanthroline"Anal. Sci.. 17. 221-223 (2001)

I. Matsubayashi，Y. Hasekawa：“铕 (III) 与新戊酰三氟丙酮和 1,10-菲咯啉的协同萃取中溶剂效应的热力学考虑”

Y. Hasegawa, I. Matsubayashi, A. Inagaki: "An Expression of Equilibrium Constants in Synergistic Extraction"ISEC2002 Proceedings 2002 (March). (in press).

Y. Hasekawa、I. Matsubayashi、A. Inagaki：“协同萃取中平衡常数的表达”ISEC2002 会议记录，2002 年（3 月）。