Functional analysis of sulfonamide-type chelating agents as separation agents

磺酰胺类螯合剂作为分离剂的功能分析

• 批准号: 18550070
• 负责人: HIRAYAMA Naoki
• 金额: $ 2.64万
• 依托单位: Kanazawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18550070/
• 关键词: Sulfonamides; Chelating agents; Solvent extraction; Functional analysis; Ionic liquids; 互変異性; 水和錯体

Functional analysis of sulfonamide-type chelating agents, which have negatively-charged nitrogen atom as Lewis donor, as extraction agents was performed. In concrete, the following fundamental studies were investigated.1. To evaluate the possible use of sulfonamide-type monoanionic N,N-bidentate ligands as extrative separation agents for divalent metal cations the chelate extraction behavior of copper(II) cation into chloroform with several N-Ca-N- bidentate ligands having the p-toluenesulfonamido group was investigated as a model system. All of the four N-C2-N- ligands studied showed quantitative extractability for copper(II) and the metal-to-ligand ratio in the extracted species was 1:2. Furthermore, the order of the extraction constants for copper(II) with the ligands suggests that the number of π-electrons in the N-C_2-N- structure is an important factor in achieving high complexation ability and extractability.2. Possible use of 8-sulfonamidoquinoline derivatives as chelate extractive separation agents for solvent extraction of several divalent metal cations using an ionic liquid, 1-butyI-3-methylimidazolium hexafluorophosphate ([bmim][PF_6]) as extraction phase was investigated as fundamental approach to develop novel extractive separation agents for ionic liquid extraction system. The studied agents were able to be used as extractants for the metal cations in the [bmim][PF_6] extraction system. Furthermore, their extractability in the [bmim][PF_6] system was superior to that in chloroform system. Most of the extracted species were (hydrated) neutral complexes, whereas, in use of the derivative having trifluoromethyl group, divalent cadmium was extracted as anionic complex accompanied with anion-exchange process.

进行了具有带负电荷的氮原子作为刘易斯供体的磺酰胺型螯合剂作为萃取剂的功能分析。具体而言，本文进行了以下基础性研究.为了评价磺酰胺型单阴离子N，N-双齿配体作为二价金属离子萃取分离剂的可能性，以几种含对甲苯磺酰胺基的N-Ca-N-双齿配体为模型体系，研究了铜（II）在氯仿中的螯合萃取行为.研究的所有四个N-C2-N-配体均表现出对铜（II）的定量可萃取性，并且萃取物种中的金属与配体的比率为1：2。配体对Cu（II）的萃取常数的顺序表明，N-C_2-N-结构中的π电子数是获得高络合能力和萃取能力的重要因素.研究了8-磺酰胺基喹啉衍生物作为螯合萃取分离剂在离子液体1-丁基-3-甲基咪唑六氟磷酸盐（[bmim][PF_6]）萃取体系中对多种二价金属离子的萃取分离性能。所研究的萃取剂可作为[bmim][PF_6]萃取体系中金属离子的萃取剂。在[bmim][PF_6]体系中，它们的萃取性能比在氯仿体系中好上级。大多数提取的物种是（水合）中性络合物，而在使用具有三氟甲基基团的衍生物时，二价镉被提取为阴离子络合物，伴随着阴离子交换过程。

项目成果

Solvent extraction of alkaline earth metal ions using N, N'-bis(2-hydroxy-5-nitrophenylmethyl)-N, N'-1bis(2-pyridylmethyl)-1, 2-ethanediamine

使用 N,N-双(2-羟基-5-硝基苯基甲基)-N,N-1双(2-吡啶甲基)-1, 2-乙二胺溶剂萃取碱土金属离子

• 发表时间: 2007
• 期刊: Journal of Ion Exchange 18
• 作者: Taku;Ajioka;Syunichi;Oshima;Naoki;Hirayama;Y. Mikata;Chikako Kato;Syunichi Oshima
• 通讯作者: Syunichi Oshima

Effect of eluent countercation on anion-chromatographic retention of aromatic dianions

洗脱液抗衡阳离子对芳香族双阴离子阴离子色谱保留的影响

• 发表时间: 2007
• 期刊: Journal of Ion Exchange 18
• 作者: Taku;Ajioka;Syunichi;Oshima;Naoki;Hirayama;Y. Mikata;Chikako Kato;Syunichi Oshima;藤井祥子;Syunichi Oshima;藤本智美;Chikako Kato;稲葉陽子;Takuro Takeshita
• 通讯作者: Takuro Takeshita

Synthesis, characterization and evaluation of mesoporous silicates for adsorption of metal ions

介孔硅酸盐吸附金属离子的合成、表征及评价

• 发表时间: 2007
• 期刊: Advanced Powder Technology 18
• 作者: Taku;Ajioka;Syunichi;Oshima;Naoki;Hirayama;Y. Mikata;Chikako Kato;Syunichi Oshima;藤井祥子;Syunichi Oshima;藤本智美;Chikako Kato;稲葉陽子;Takuro Takeshita;Kathy Northcott
• 通讯作者: Kathy Northcott

Peculiar Extraction Behavior of Nickel(II) Originated in Steric Effect of Schiff Base Ligands in Ion-pair Extraction Systems

镍 (II) 的特殊萃取行为源于离子对萃取系统中席夫碱配体的空间效应

• 发表时间: 2007
• 作者: Syunichi Oshima;Koji Kubono;Hisao Kokusen;Yu Komatsu;Naoki Hirayama
• 通讯作者: Naoki Hirayama

Adsorption Behavior of Cadmium(II) and Lead(II) on Mesoporous Silicate MCM‐41

• DOI: 10.1080/01496390600674786
• 发表时间: 2006-07
• 期刊: Separation Science and Technology
• 影响因子: 2.8
• 作者: S. Oshima;J. Perera;K. Northcott;H. Kokusen;G. Stevens;Y. Komatsu