REGULARITIES OF EXTRACTION OF IONIC AND NONIONIC SURFACTANTS FROM THEIR BINARY AQUEOUS SOLUTIONS
Dodecylpyridinium chloride and nonionic surfactants – Twins (Tween-20, Tween-40, Tween-80) from their binary equimolar aqueous solutions under conditions of varying the acidity of the medium from 2 to 12 have been experimentally studied. Possible mechanisms for the interaction of surfactants of vari...
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Odessa I. I. Mechnikov National University
2017-09-01
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Online Access: | http://heraldchem.onu.edu.ua/article/view/109387 |
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doaj-e3b23b6abbb54107ab7c30c2440634642020-11-24T21:07:30ZengOdessa I. I. Mechnikov National University Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ2304-09472414-59632017-09-01223(63)324110.18524/2304-0947.2017.3(63).109387109387REGULARITIES OF EXTRACTION OF IONIC AND NONIONIC SURFACTANTS FROM THEIR BINARY AQUEOUS SOLUTIONSA. A. Mazuryk0E. A. Streltsova1V. V. Menchuk2Одеський національний університет імені І. І. Мечникова, кафедра фізичної та колоїдної хіміїОдеський національний університет імені І. І. Мечникова, кафедра фізичної та колоїдної хіміїОдеський національний університет імені І. І. Мечникова, кафедра фізичної та колоїдної хіміїDodecylpyridinium chloride and nonionic surfactants – Twins (Tween-20, Tween-40, Tween-80) from their binary equimolar aqueous solutions under conditions of varying the acidity of the medium from 2 to 12 have been experimentally studied. Possible mechanisms for the interaction of surfactants of various types in a wide range of pH values of the medium are proposed. Studies have shown that Twins are not sensitive to a change in the acidity of the medium, their extraction from binary solutions with sodium dodecyl sulfate and Dodecylpyridinium chloride increases over the entire pH range of the medium and reaches 92-98%. Dodecylpyridinium chloride is best extracted from binary aqueous solutions with Twins in strong acid (pH 2) and strong alkaline (pH 12) media. In a wide range of pH values of the medium, the degree of flotation extraction of sodium dodecyl sulfate from binary solutions is increased by about 15% as compared to its extraction from an individual solution. The maximum of flotation extraction of sodium dodecyl sulfate from both individual and equimolar binary aqueous solutions with Twins is observed in acidic (pH 7) and alkaline (pH 7-10) media. The coefficient of flotation separation for binary solutions of Tween-sodium dodecyl sulfate is calculated, it which shows exactly how the surfactant is enriched with a foam fraction at a certain pH value. The formal study of the kinetics of flotation extraction of surfactants allowed to calculate the rate constant of the process and to establish the optimal flotation time. The time required for the maximum extraction of Twins and sodium dodecyl sulfate from the binary solution has reduced in comparison with individual solutions and it is about 2-3 minutes, and for extraction of Twins and Dodecylpyridinium chloride from their binary solution it is 5-7 minutes. The values of the rate constants of flotation are increased by 2-5 times for Twins, 3,5-5 times for sodium dodecyl sulfate when they are extracted from binary solutions of Tween- sodium dodecyl sulfate as compared to extraction from individual solutions; ≈ 1,5 – 3 times for Twins and 1,5 – 3 times for Dodecylpyridinium chloride when they are extracted from binary solutions of Twin – Dodecylpyridinium chloride. The obtained results can be used in the selection of optimal technological parameters for flotation of ionic and non-ionic surfactants.http://heraldchem.onu.edu.ua/article/view/109387флотація, поверхнево-активна речовина, Твіни, хлорид додецилпіридинію, додецилсульфат натрію |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
A. A. Mazuryk E. A. Streltsova V. V. Menchuk |
spellingShingle |
A. A. Mazuryk E. A. Streltsova V. V. Menchuk REGULARITIES OF EXTRACTION OF IONIC AND NONIONIC SURFACTANTS FROM THEIR BINARY AQUEOUS SOLUTIONS Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ флотація, поверхнево-активна речовина, Твіни, хлорид додецилпіридинію, додецилсульфат натрію |
author_facet |
A. A. Mazuryk E. A. Streltsova V. V. Menchuk |
author_sort |
A. A. Mazuryk |
title |
REGULARITIES OF EXTRACTION OF IONIC AND NONIONIC SURFACTANTS FROM THEIR BINARY AQUEOUS SOLUTIONS |
title_short |
REGULARITIES OF EXTRACTION OF IONIC AND NONIONIC SURFACTANTS FROM THEIR BINARY AQUEOUS SOLUTIONS |
title_full |
REGULARITIES OF EXTRACTION OF IONIC AND NONIONIC SURFACTANTS FROM THEIR BINARY AQUEOUS SOLUTIONS |
title_fullStr |
REGULARITIES OF EXTRACTION OF IONIC AND NONIONIC SURFACTANTS FROM THEIR BINARY AQUEOUS SOLUTIONS |
title_full_unstemmed |
REGULARITIES OF EXTRACTION OF IONIC AND NONIONIC SURFACTANTS FROM THEIR BINARY AQUEOUS SOLUTIONS |
title_sort |
regularities of extraction of ionic and nonionic surfactants from their binary aqueous solutions |
publisher |
Odessa I. I. Mechnikov National University |
series |
Vìsnik Odesʹkogo Nacìonalʹnogo Unìversitetu: Hìmìâ |
issn |
2304-0947 2414-5963 |
publishDate |
2017-09-01 |
description |
Dodecylpyridinium chloride and nonionic surfactants – Twins (Tween-20, Tween-40, Tween-80) from their binary equimolar aqueous solutions under conditions of varying the acidity of the medium from 2 to 12 have been experimentally studied. Possible mechanisms for the interaction of surfactants of various types in a wide range of pH values of the medium
are proposed. Studies have shown that Twins are not sensitive to a change in the acidity of the medium, their extraction from binary solutions with sodium dodecyl sulfate and Dodecylpyridinium chloride increases over the entire pH range of the medium and reaches 92-98%. Dodecylpyridinium chloride is best extracted from binary aqueous solutions with Twins in strong acid (pH 2) and strong alkaline (pH 12) media. In a wide range of pH values of the medium, the degree of flotation extraction of sodium dodecyl sulfate from binary solutions is increased by about 15% as compared to its extraction from an individual solution.
The maximum of flotation extraction of sodium dodecyl sulfate from both individual and equimolar binary aqueous solutions with Twins is observed in acidic (pH 7) and alkaline (pH 7-10) media. The coefficient of flotation separation for binary solutions of Tween-sodium dodecyl sulfate is calculated, it which shows exactly how the surfactant is enriched with a
foam fraction at a certain pH value. The formal study of the kinetics of flotation extraction of surfactants allowed to calculate the rate constant of the process and to establish the optimal flotation time. The time required for the maximum extraction of Twins and sodium dodecyl sulfate from the binary solution has reduced in comparison with individual solutions and it
is about 2-3 minutes, and for extraction of Twins and Dodecylpyridinium chloride from their binary solution it is 5-7 minutes. The values of the rate constants of flotation are increased by 2-5 times for Twins, 3,5-5 times for sodium dodecyl sulfate when they are extracted from binary solutions of Tween- sodium dodecyl sulfate as compared to extraction from individual
solutions; ≈ 1,5 – 3 times for Twins and 1,5 – 3 times for Dodecylpyridinium chloride when they are extracted from binary solutions of Twin – Dodecylpyridinium chloride. The obtained results can be used in the selection of optimal technological parameters for flotation of ionic
and non-ionic surfactants. |
topic |
флотація, поверхнево-активна речовина, Твіни, хлорид додецилпіридинію, додецилсульфат натрію |
url |
http://heraldchem.onu.edu.ua/article/view/109387 |
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