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étude et modelisation du systeme tributylphosphate – acides monocarboxyliques

Abstract : This work concerns the study of the liquid-liquid extraction as a method of recovery and valorization of the carboxylic acids in agro-industrial's effluents. The feasibility of such a process can be established only by investigating all the equilibria involved during the process of extraction. Initially, a detailed study of the mechanism known as « reaction at the interface » made it possible to touch the limits of application of this model when the operational parameters change, thus, this criticism led to a revision of the assumptions on which this model is founded. Taking into account the solubility of Tributylphosphate in aqueous phase, a model known as of “reaction in the aqueous phase” was proposed. It was applied successfully to five monoacids with a broad area of initial concentration of acid, three solvent ratios and eight concentration of extractant (TBP) diluted in dodecane. Finally, the model was extrapolated and validated on liquid-liquid equilibrium data with two carboxylic acids extracted at the same time.
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Submitted on : Thursday, May 3, 2007 - 6:35:19 PM
Last modification on : Friday, January 10, 2020 - 9:08:43 PM
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Azeddine Idrissi Bouraqadi. étude et modelisation du systeme tributylphosphate – acides monocarboxyliques. Autre. Institut National Polytechnique de Toulouse - INPT, 2006. Français. ⟨tel-00144577⟩

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