光谱学与光谱分析
环烷酸-酸性磷酸酯-庚烷体系萃取有机相的红外光谱研究
尹文萱1, 2 ,刘玉峰1 ,张元福1 ,翁诗甫1 ,吴瑾光1*
1. 北京大学化学与分子工程学院, 北京 100871
FTIR Investigation of Organic Phase Containing Rare Earth Ion in Naphthenic Acid-Phosphonate Ester-Heptane System
YIN Wen-xuan1, 2 , LIU Yu-feng1 , ZHANG Yuan-fu1 , WENG Shi-fu1 , WU Jin-guang1*
1. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
摘要 ： 将环烷酸(NA)与2-乙基己基磷酸单2-乙基己基酯(PC88A)混合，以浓KOH溶液皂化，研究了高皂化度(80％)油包水型微乳萃取钕过程的有机相的结构变化。通过红外光谱分析，发现萃取钕过程随着负载率增加，COOH伸缩振动吸收峰 、COO- 的反对称峰及PO伸缩振动吸收峰的峰位均向低波数移动。结果表明：皂化NA和PC88A的混合体系萃钕过程，NA与PC88A存在相互作用;它们都与Nd3+ 作用，但PC88A作用较环烷酸完全，萃取有机相中，P—O—H伸缩振动吸收峰消失，还残留部分COOH没有完全转化为COO- ;环烷酸、PC88A与钕之间形成的萃合物具有复杂结构。
关键词 ：混合萃取剂;微乳;萃取有机相;FTIR
Abstract ：Naphthenic acid (NA) was mixed with PC88A in heptane, and 10 moL·L-1 KOH aqueous solution was used to saponify the solution subsequently. The transparent and clear appearance of the obtained solution indicated the formation of w/o micell and microemusion. In the present study, micell with high saponification percentage (80%) was used to extract neodymium. The organic phase structure was characterized using FTIR spectroscopy in the extraction process. IR spectra indicate that the characteristic peaks of ν (COOH), ν s (COO- ) and ν(PO) shift to lower wavenumbers as the loading of Nd in organic phase increases. The results demonstrated that Nd(Ⅲ) are coordinated to PO and COO- groups simultaneously, and the supramolecules with self-assembly structure was formed containing PC88A and NA, which were binding with Nd(Ⅲ) in the extracted organic phase.
Key words ：Mixed extraction;Microemulsion;Extracted organic phase;FTIR
收稿日期: 2004-11-12
修订日期: 2005-02-26
通讯作者:
吴瑾光
引用本文:
尹文萱1, 2 ,刘玉峰1 ,张元福1 ,翁诗甫1 ,吴瑾光1* . 环烷酸-酸性磷酸酯-庚烷体系萃取有机相的红外光谱研究[J]. 光谱学与光谱分析, 2006, 26(05): 825-827.
1, 2 , LIU Yu-feng1 , ZHANG Yuan-fu1 , WENG Shi-fu1 , WU Jin-guang1* . FTIR Investigation of Organic Phase Containing Rare Earth Ion in Naphthenic Acid-Phosphonate Ester-Heptane System. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(05): 825-827.
链接本文:
https://www.gpxygpfx.com/CN/Y2006/V26/I05/825
[1] WU Chin-kwang, KAO Hung-cheng, CHEN Tien, et al. 1980 Conference of ISEC, Held in Liege, Belgium, Paper No. 80.
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