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  • 1 Université de Lyon, 69000, Lyon, France
  • | 2 Université Lyon 1, Laboratoire Hydrazines et Procédés, UMR CNRS 5179, 69622, Lyon, Villeurbanne Cedex, France
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Abstract

Three isothermal sections of the isobaric ternary system H2O–NaOH–C5H10NH were determined by Isoplethic Thermal Analysis at 293, 313, and 323 K. Miscibility gaps were completely delimited and each critical point was calculated. This system is then characterized by a prevalent miscibility gap, three crystallization domains and two triphasic invariant domains. The relevant exploitation of this diagram so permits us to deduce the demixing temperature leading to the optimal transfer of the organic compounds in the light phase and also the composition of the organic phase recovered after this second step of extraction. Moreover, the addition of calculated quantities of sodium hydroxide aqueous solution allows to be in optimized conditions for the next distillation operations.

  • 1. Labarthe, E, Bougrine, AJ, Delalu, H, Berthet, J, Counioux, JJ 2009 Equilibrium study between condensed phases by isoplethic thermal analysis when a miscibility gap is observed. J Therm Anal Calorim 95 1 135139 .

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  • 2. Labarthe E , Bougrine AJ, Delalu H. Study of the polythermal diagram water-sodium sulphate-piperidine. J Therm Anal Calorim. doi: .

  • 3. Berthet J , Counioux JJ. Patent F9313402. 4 Nov 1993.

  • 4. Pickering, SU 1893 The hydrates of sodium, potassium and lithium hydroxides. J Chem Soc 63:890909.

  • 5. Cohen-Adad, R, Tranquard, A, Peronne, R, Negri, P, Rollet, AP 1960 Le système eau-hydroxyde de sodium. Comptes Rendus de l'académie des Sciences 251:20352037.

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  • 6. Rollet, AP, Cohen-Adad, R 1694 Les systèmes “eau-hydroxyde alcalin”. Revue de chimie minérale 1:451478.

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