SFGP 2007 - An analysis of the mass transfer in a non-dispersive solvent extraction closed system

• Tipo: Artigo em Revista Científica Internacional
• Data: 2008

Autores

Albaraka, Z (Autor) Outra; Trebouet, D (Autor) Outra; Tuna, M (Autor) Outra; José Miguel Loureiro (Autor) FEUP; Burgard, M (Autor) Outra

Revista

Título: International Journal of Chemical Reactor Engineering

Vol. 6

Página Inicial: A13

ISSN: 2194-5748

Editora: Walter de Gruyter GmbH

Indexação

ISI Web of Knowledge - 0 Citações

ISI Web of Science

Scopus - 3 Citações

INSPEC

COMPENDEX

Classificação Científica

FOS: Ciências da engenharia e tecnologias

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

ID Authenticus: P-004-3N0

DOI: 10.2202/1542-6580.1632

Abstract (EN): The experimental study that concerns the extraction of alkali picrates with the bis-crown-6-calix[4]arene in a hollow fibers membrane contactor, validates a dynamic model described in a previous paper [D. Trebouet, Sep. Pur. Tech., 50, 97-106, 2006]. The experimental data confirm the influence of parameters as the aqueous and organic phase flowrates and module capacity factor on the sensitivity of the system. It appears clearly that the closed extraction system operates in an unsteady state until equilibrium is reached and so only dynamic models can represent mass transfer within reasonable accuracy. The overall mass transfer coefficient is determined even in the case where the equilibrium is described by a non-linear distribution isotherm. The determination of an overall mass transfer coefficient shows that the diffusion of the metal complex in the microporous is the main limiting step of mass transfer.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 15