Separation of liquid mixtures by liquid membranes in a column apparatus

Stelmaszek, J.

doi:10.1016/s0376-7388(00)83247-0

Cited by 8 publications

(2 citation statements)

References 4 publications

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“…It is expected that for large volumes of surfactant solution, the separation factor does not change (Li, 1968). Figure (7) shows experimental results for this ratio. It can be seen that separation factor is constant when the volume ratio approximately 0.…”

Section: Effect Of Ratio Of Volume Of Surfactant Solution To Volume O...mentioning

confidence: 99%

“…Also found that separation factor depends on solubility of permeates and its diffusivity. Stelmaszek (1977) measured the equilibrium curves for benzene and hexane and studied the dependency of the separation coefficient of the mixture on the feed composition, flow rate, and the effect of the solvent flow rate on the volume fraction of hexane in the raffinate and permeate was determined.…”

Section: Introductionmentioning

confidence: 99%

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Separation of Hexane-Benzene Mixtures by Emulsion Liquid Membrane.

Hemiri¹,

Zaidi²

2008

IJCPE

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The effect of operating parameters on the batch scale separation of hydrocarbon mixture (benzene and hexane) usingemulsion liquid membrane technique is reported. Sparkleen detergent was used as surfactant and heavy mineral oil assolvent to receive the permeates.From the experimental results, the parameters that influenced the permeation are, composition of feed, contact timewith solvent, ratio of volume of solvent to volume of hydrocarbon feed, ratio of volume of surfactant solution to volumeof hydrocarbon feed, surfactant concentration, mixing intensity and glycerol as polar additive in the surfactant solutionto eliminate drop breakup.The best conditions for the separation in this study were found to be: composition of feed (mole fraction ofbenzene=0.5245), contact time of 10min. , ratio of volumes of solvent to feed equal 3.5 , ratio of volumes of surfactantsolution to feed of 0.4, surfactant concentration of 1wt%, mixing intensity equal 1000rpm and 70% by weight of polaradditive. These conditions gave a separation factor of (8.0).

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Section: Effect Of Ratio Of Volume Of Surfactant Solution To Volume O...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Separation of Hexane-Benzene Mixtures by Emulsion Liquid Membrane.

Hemiri¹,

Zaidi²

2008

IJCPE

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Flüssigmembran‐Technik – Übersicht über Phänomene, Transportmechanismen und Modellbildungen

Marr

Kopp

1980

Chemie Ingenieur Technik

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Liquid membrane technology -A survey of associated phenomena, transport mechanisms, and models. Liquid membrane permeation is the name given to a simultaneous extraction/stripping process. A summary of related phenomena, mass transfer, and models is presented. A new model has been developed to describe mass transfer in liquid membranes, in which the spherical droplets serve as reaction centres. An account of present applications demonstrates the limitations of liquid membrane processes.

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