Micellar and Extraction Properties of Ethoxylated Monoalkylphenols, a Review

IF 1.4 4区化学 Q4 CHEMISTRY, PHYSICAL

Journal of Solution Chemistry Pub Date : 2025-04-01 DOI:10.1007/s10953-025-01445-4

Victor P. Arkhipov, Ruslan V. Arkhipov, Andrei Filippov

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引用次数: 0

Abstract

This review article considers the properties of the homologous series of ethoxylated monoalkylphenols C₉H₁₉C₆H₄O(C₂H₄O)_nH with degrees of oxyethylation from n = 2 to n = 12, which are effective nonionic surfactants for cloud point extraction. The results of cloud point measurements of aqueous solutions of pure ethoxylated monoalkylphenols, in their mutual mixtures, in the presence of sodium salts, depending on the concentration of the surfactant and the balance of surfactants in binary mixtures are discussed. Based on the results of self-diffusion coefficient measurements, the effective radii of micelles and dehydrated aggregates of surfactants near and above the turbidity region are calculated, and the phenomenon of oxyethylene chain contraction is discussed. The efficiency of phenol CPE was measured by NMR spectroscopy, the effect of electrolytes and the composition of mutual mixtures of surfactants on increasing the efficiency of CPE and reducing the process temperature to room values was analyzed. The CPE method is an effective, environmentally friendly method of wastewater treatment, and the homologous series of ethoxylated monoalkylphenols are excellent nonionic surfactants for it.

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乙氧基化单烷基酚的胶束及萃取性能研究进展

本文综述了氧乙基化度为n = 2 ~ n = 12的c9h19c6h40o (c2h40o)nH系列氧乙基化单烷基酚的性质，这些单烷基酚是云点萃取的有效非离子表面活性剂。讨论了在钠盐存在下，纯乙氧基化单烷基酚的相互混合物中，根据表面活性剂的浓度和二元混合物中表面活性剂的平衡，测定其浊点的结果。根据自扩散系数的测量结果，计算了表面活性剂在浊度区附近和浊度区以上胶束和脱水团聚体的有效半径，并讨论了氧乙烯链收缩现象。采用核磁共振波谱法测定了苯酚CPE的效率，分析了电解质和表面活性剂相互混合物的组成对提高CPE效率和降低工艺温度的影响。CPE法是一种有效的、环境友好的废水处理方法，而相应系列的乙氧基化单烷基酚是其优良的非离子表面活性剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Solution Chemistry 化学-物理化学

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

3-8 weeks

期刊介绍： Journal of Solution Chemistry offers a forum for research on the physical chemistry of liquid solutions in such fields as physical chemistry, chemical physics, molecular biology, statistical mechanics, biochemistry, and biophysics. The emphasis is on papers in which the solvent plays a dominant rather than incidental role. Featured topics include experimental investigations of the dielectric, spectroscopic, thermodynamic, transport, or relaxation properties of both electrolytes and nonelectrolytes in liquid solutions.