Prediction of the cloud point of polyethoxylated surfactants and their mixtures by the thermodynamic model of Flory-Huggins-Rupert
| Autor: | Katia Teixeira Da Silva De La Salles, Boumediene Haddou, Christophe Gourdon, Jean Paul Canselier, Houaria Benkhedja |
|---|---|
| Přispěvatelé: | Laboratoire Physique-Chimie des Matériaux Catalyse et Environnement - LPCME (Oran, Algérie), Université des sciences et de la Technologie d'Oran Mohamed Boudiaf [Oran] (USTO MB), Laboratoire de génie chimique [ancien site de Basso-Cambo] (LGC), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Center of Exact Sciences and Technology - UNIRIO (BRAZIL), Centre National de la Recherche Scientifique - CNRS (FRANCE), Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE), Université Toulouse III - Paul Sabatier - UT3 (FRANCE), Université des Sciences et de la Technologie Mohamed Boudiaf d'Oran - USTO (ALGERIA), Institut National Polytechnique de Toulouse - INPT (FRANCE) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Work (thermodynamics)
Materials science Polymers and Plastics Demixing curves Thermodynamics Polyethoxylated surfactants 02 engineering and technology Flory–Huggins solution theory chemistry.chemical_compound [CHIM.GENI]Chemical Sciences/Chemical engineering 020401 chemical engineering Cloud point Génie chimique [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering 0204 chemical engineering Physical and Theoretical Chemistry Génie des procédés chemistry.chemical_classification Aqueous solution Ethylene oxide Extraction (chemistry) Modeling Polymer 021001 nanoscience & nanotechnology Unit operation Flory-Huggins-Rupert approach Surfaces Coatings and Films chemistry 0210 nano-technology |
| Zdroj: | Journal of Dispersion Science and Technology Journal of Dispersion Science and Technology, Taylor & Francis, 2018, pp.1-8. ⟨10.1080/01932691.2018.1485577⟩ |
| ISSN: | 0193-2691 1532-2351 |
| DOI: | 10.1080/01932691.2018.1485577⟩ |
| Popis: | International audience; The cloud point curves of polyethoxylated surfactants are established experimentally. These experimental data are preliminary to the development of the cloud point extraction process, which appears as an interesting alternative to the usual solvent extraction unit operation. Starting from the thermodynamic model developed by Flory and Huggins for phase separation of polymer aqueous solutions, this paper aims at the prediction of cloud point curves. In this work, Rupert’s approach is extended to commercial nonionic surfactants, mixtures of homologous species, namely a few alkylphenol and alcohol ethoxylates. The limit of such an approach is clearly demonstrated, provided that a fitting parameter is finally required for a successful model application to pilot-plant manufactured surfactants, like C8ΦEn (n = 7.5, 10, 12), C9ΦEn (n = 8, 10, 12), C12E4, C12E6 and commercial Tergitol 15-S-7 (linear C12-C14 secondary alcohol with an average of 7 ethylene oxide units) |
| Databáze: | OpenAIRE |
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