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- W2155572232 abstract "Ce travail porte sur l'échange d'ions en couche fluidisée monoétagée peu profonde lorsque le phénomène d'échange n'est pas irréversible et dépend de l'isotherme d'équilibre. Les expériences sont effectuées en échangeant des ions H+ de résine Duolite C 20 D avec des ions Cu2+ d'une solution de concentration ionique totale 0,1 N. L'isotherme d'équilibre ainsi que d'autres propriétés physicochimiques de ce système ont été déterminées expérimentalement. Nous proposons ensuite une modélisation des opérations d'échange d'ions réalisiées prenant en compte l'isotherme d'équilibre et les phénomènes de transfert de matière en phase liquide et solide. Cette modélisation est ensuite confrontée à l'expérience. In this work we report on ion exchange in a shallow single-layer fluidized bed for which the exchange process is not irreversible and depends on the equilibrium isotherm. The experiments were performed by exchanging the H+ ions of Duolite C 20 D resin with Cu2+ ions from a solution of total ionic strength 0.1 N. The equilibrium isotherm as well as some other physicochemical properties of the system were determined experimentally. Next we propose a model for the ion exchange processes accomplished which takes into account the equilibrium isotherm and the mass transfer phenomena in the liquid and solid phases. The model is then compared with the experimental results." @default.
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- W2155572232 date "1984-04-01" @default.
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- W2155572232 title "Echange d'ions en couche fluidisée" @default.
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- W2155572232 doi "https://doi.org/10.1016/0300-9467(84)85019-4" @default.
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