Investigation of Extraction Process by Titration Calorimetry(Ⅰ)——Formation of Reversed Micelle in Organic Phase and Its Effect on Extraction Process

Abstract

Abstract: The formation of reversed micelle in extractants-organic phase was studied by titration calorimetry. Critical micellar concentration (CMC), aggregation number(n), formation constant (K) and thermodynamic function of the micellar formation △G, △H, △S were determined for system: D2EHPA(Na)-sec-octyl alcohol-kerosine and trialkylmethyl ammonium chloride-sec-octyl alcohol-kerosine. According to the above mentioned results, the effect of formation of micelle on the extraction coefficient and mechanism is discussed.

Key words: Titration calorimetry, Reversed micelle, Solvent extraction

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Shen Xing-hai, Gao Hong-cheng . Investigation of Extraction Process by Titration Calorimetry(Ⅰ)——Formation of Reversed Micelle in Organic Phase and Its Effect on Extraction Process[J]. Chem. J. Chinese Universities, 1990, 11(12): 1410.

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Investigation of Extraction Process by Titration Calorimetry(Ⅰ)——Formation of Reversed Micelle in Organic Phase and Its Effect on Extraction Process

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