introduces neat NMR spectroscopy of the ionicliquids as a probe for solute–solvent interactions as well as a tool for characterisation. Our studies show that high catalytic efficacy of functional ionicliquids can be achieved by integrating their greensynthesis, along with a fine‐tuning of their structure. Demonstrating that ionicliquid solvents can be made by a truly green procedure, and that their properties
Supramolecular organization of calix[4]pyrrole with a methyl-trialkylammonium anion exchanger leads to remarkable reversal of selectivity for sulfate extraction vs. nitrate
作者:Christopher J. Borman、Radu Custelcean、Ben P. Hay、Nathan L. Bill、Jonathan L. Sessler、Bruce A. Moyer
DOI:10.1039/c1cc12060c
日期:——
meso-Octamethylcalix[4]pyrrole (C4P) enhances sulfate selectivity in solvent extraction by Aliquat® 336N, an effect ascribed to the supramolecular preorganization and thermodynamic stability imparted by insertion of the methyl group of the Aliquat cation into the cup of C4P in its cone conformation.
[EN] REMOVAL OF EUROPIUM IMPURITIES FROM SAMARIUM-153 IN NITRATE MEDIA USING IONIC LIQUIDS<br/>[FR] ÉLIMINATION D'IMPURETÉS D'EUROPIUM À PARTIR DU SAMARIUM-153 DANS DES MILIEUX NITRATES PAR UTILISATION DE LIQUIDES IONIQUES
申请人:UNIV LEUVEN KATH
公开号:WO2019077032A1
公开(公告)日:2019-04-25
The invention relates to a process of isolating samarium from a hydrophilic composition comprising nitrate ions, europium and samarium, by reducing europium(III) to europium(II) in this hydrophilic composition, and by extracting the samarium with a water-immiscible organic phase comprising an ionic liquid comprising nitrate anions.
Polarity of tetraalkylammonium-based ionic liquids and related low temperature molten salts
作者:Gabi Thielemann、Stefan Spange
DOI:10.1039/c7nj00443e
日期:——
Solvatochromic measurements and 1H NMR spectroscopy have been used to investigate the overall polarity of tetraalkylammonium (R3N+–CH3 with R = n-C4H9; n-C8H17) based ionic liquids (IL) and low temperature molten salts (LTMS), respectively, as function of the counter anion. Solvent acidity (SA), solvent basicity (SB), polarizability (SP) and dipolarity (SdP) parameters have been determined according
溶剂变色测量和1 H NMR光谱已用于研究基于四烷基铵盐(R 3 N + -CH 3且R = n -C 4 H 9;n -C 8 H 17)的离子液体(IL)的整体极性温度熔融盐(LTMS)分别作为抗衡阴离子的函数。溶剂酸度(SA),溶剂碱度(SB),极化率(SP)和偶极性(SdP)参数已根据Catalán标度确定。[Fe II(1,10-菲咯啉)2(CN)2 ](Fe),3-(4-氨基-3-甲基苯基)-7-苯基苯并[1,2- b:4,5- b ']二呋喃-2,6-二酮(ABF),3-(4- N,N -二甲基氨基苯基)-7-苯基苯并[1,2- b:4,5 - b ']-二呋喃-2,6-二酮(DMe-ABF),4-叔丁基-2-(二氰基亚甲基)-5- [ 4-(二甲基氨基)亚苄基]-Δ 3噻唑啉(钍),和2- [4-(ñ,ñ二甲基氨基)亚苄基]丙二腈(BMN)已被用作溶剂化极性的指标。阴离子X
An ionic liquid-based synergistic extraction strategy for rare earths
作者:Menghao Zhu、Junmei Zhao、Yingbo Li、Nada Mehio、Yuruo Qi、Huizhou Liu、Sheng Dai
DOI:10.1039/c5gc00360a
日期:——
A sustainable IL-based synergistic extraction system for rare earth nitrates shows improved extraction selectivity and good physical properties.