Swelling phenomena of emulsion liquid membranes with dithio‐DEHPA as carrier | Zendy

Reis M. Teresa A. | Zendy; Carvalho Jorge M. R. | Zendy

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Swelling phenomena of emulsion liquid membranes with dithio‐DEHPA as carrier

Author(s) -

Reis M. Teresa A.,

Carvalho Jorge M. R.

Publication year - 1994

Publication title -

chemical engineering and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.403

H-Index - 81

eISSN - 1521-4125

pISSN - 0930-7516

DOI - 10.1002/ceat.270170405

Subject(s) - emulsion , membrane , swelling , permeation , chemistry , surface tension , zinc , aqueous solution , chemical engineering , chromatography , organic chemistry , biochemistry , thermodynamics , physics , engineering

The purpose of this paper is to investigate the swelling of emulsion liquid membranes using dithio‐DEHPA as carrier. The application of interest was the removal of zinc from a synthetic aqueous solution which simulates a zinc plant effluent. The effect of several variables such as the concentration of carrier in the membrane, stirring speed and permeation time on the swelling of the emulsion is reported. Experimental results show that occlusion depends mainly on the amount of carrier in the membrane and can be significant when the concentration of carrier is lower than 6.0%. The interfacial tension analysis confirms that the size of globules is influenced by the concentration of carrier in the membrane. Stirring speed and permeation time are related to the water transport and must be kept at low values.

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