Phase equilibria and extraction of metal cations in the systems based on synergistic mixtures of potassium bis(alkylpolyoxyethylene)phosphate and alkylbenzyldimethylammonium chloride

被引：0
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作者：
A. M. Elokhov
N. V. Bogomolov
S. A. Denisova
O. S. Kudryashova
A. E. Lesnov
机构：
[1] Perm State National Research University,
[2] Natural Science Institute of Perm State National Research University,undefined
[3] Institute of Technical Chemistry,undefined
[4] the Branch of the Perm Federal Research Center of the Ural Branch of the Russian Academy of Sciences,undefined
[5] D. N. Pryanishnikov Perm State Agricultural Academy,undefined
来源：
Russian Chemical Bulletin | 2018年 / 67卷
关键词：
ionic surfactants; oxyethylated surfactants; phase separation; liquid-liquid extraction;
D O I：
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摘要：
The solubility in the system formed by the oxyethylated anionic surfactant potassium bis(alkylpolyoxyethylene)phosphate (oxyphos B), the cationic surfactant alkyldimethylbenz- ylammonium chloride (cathamine AB), and water was studied. The optimal parameters of the extraction process in the systems based on the mixture of surfactants, whose aqueous solutions have the lowest phase-separation temperatures, without a salting-out agent and in the presence of (NH4)2SO4 were established. A possibility of the extraction of metal cations in the oxyphos B—cathamine AB—water system at 50 °С, and the (NH4)2SO4—oxyphos B—cathamine AB—water system at 25 °С was demonstrated. The advantages of application of a mixture of ionic surfactants as compared to the systems based on individual surfactants were revealed.
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页码：206 / 210
页数：4
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