Phase equilibria and extraction of metal ions in systems based on mixtures of oxyethylated nonylphenols

According to the study of phase equilibria in a neonol AF 9–10—neonol AF 9–12—water system made by the visual polythermal method, the immiscibility area in the system exists at temperatures above 68 °C and its formation is associated with a limited solubility of the surfactant in water at the temper...

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Bibliographic Details
Published in:Russian chemical bulletin 2023-09, Vol.72 (9), p.2036-2040
Main Authors: Shilykovskaya, D. O., Elokhov, A. M., Denisova, S. A., Lesnov, A. E.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
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Inorganic Chemistry
Miscibility
Mixtures
Organic Chemistry
Phase equilibria
Salting
Thallium
Thiocyanates
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Summary:According to the study of phase equilibria in a neonol AF 9–10—neonol AF 9–12—water system made by the visual polythermal method, the immiscibility area in the system exists at temperatures above 68 °C and its formation is associated with a limited solubility of the surfactant in water at the temperatures studied. The conditions for the quantitative extraction of thallium( iii ) in the form of bromide and thiocanate complexes and iron( iii ) in the form of thiocyanate complexes in the neonol AF 9–10—water system at 85 °C were established. The use of a mixture of neonols in the absence of a salting agent gives no special advantages over the use of the neonol AF 9–10—water system.
ISSN:1066-5285
1573-9171
DOI:10.1007/s11172-023-3997-5