Regularities of Ion-Exchange Extraction of Anions 2(4)-Octylaminopyridines from Aqueous Media

Proceedings of the Southwest State University. Series: Engineering and Technology Pub Date : 2024-04-11 DOI:10.21869/2223-1528-2024-14-1-161-174

L. S. Ageeva, N. V. Kuvardin, A. P. Shevchenko

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Abstract

Purpose of the study. Based on the results of the study of salts of 2(4)-octylaminopyridines (2(4)-OAP) by physical methods and their distribution in the two-phase system water-chloroform, establish the patterns of ion-exchange extraction of anions using aromatic amines.Methods. Chemical synthesis of 2(4)-OAP and their halides, spectrophotometry to determine the concentration of 2(4)-OAP in the aqueous and organic phase, characterization of 2(4)-OAP and their halides by IR, PMR and ESCA spectroscopy.Results. Synthesized by original methods and identified 2(4)-OAP and their halides. The distribution constants of 2-aminopyridine and 4-OAP salts with a singly charged anion in the water–chloroform two-phase system were determined. It is shown that the obtained constants increase in the following order: F-<Сl-

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从水介质中离子交换萃取阴离子 2(4)-Octylaminopyridines 的规律性

研究目的根据物理方法研究 2(4)-辛基氨基吡啶（2(4)-OAP）盐及其在水-氯仿两相体系中分布的结果，建立使用芳香胺离子交换萃取阴离子的模式。化学合成 2(4)-OAP 及其卤化物，用分光光度法测定 2(4)-OAP 在水相和有机相中的浓度，用红外光谱、PMR 光谱和 ESCA 光谱鉴定 2(4)-OAP 及其卤化物。采用原始方法合成并鉴定了 2(4)-OAP 及其卤化物。测定了 2-aminopyridine 和 4-OAP 盐与单电荷阴离子在水-氯仿两相体系中的分布常数。结果表明，所得常数按以下顺序增加：F-<Сl-

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Proceedings of the Southwest State University. Series: Engineering and Technology

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