Design Considerations

Gu, Zhongmao; Ho, W.S. Winston; Li, Norman N.

doi:10.1007/978-1-4615-3548-5_38

Cited by 15 publications

(2 citation statements)

References 100 publications

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“…The organic diluent influences the performance of many liquid membrane systems (Gu et al, 1992;Saji et al, 1998;Tutkun et al, 1999;Alguacil and Alonso, 2004). Toluene, n-heptane, kerosene, Escaid 100, and Escaid 200 were used as diluents.…”

Section: Effect Of Diluentmentioning

confidence: 99%

The extraction of lactic acid by emulsion type of liquid membranes using alamine 336 in escaid 100

Yıldız

Tutkun

2011

Can J Chem Eng

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The extraction of lactic acid from aqueous solutions through an emulsion liquid membrane containing Alamine 336 as carrier was investigated. The influence of mixing speed, diluent type, surfactant concentration, extractant concentration, feed solution pH, stripping concentration, phase ratio, and feed concentration were examined. Liquid membrane consists of a diluent (n-heptane, toluene, kerosene, Escaid 100, and Escaid 200), a surfactant (Span 80) and an extractant (Alamine 336), and Na 2 CO 3 were used as a stripping solution. It is possible to extract 91% of lactic acid from aqueous solutions using Alamine 336 in Escaid 100, as an extractant and a diluent respectively.

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Section: Effect Of Diluentmentioning

confidence: 99%

The extraction of lactic acid by emulsion type of liquid membranes using alamine 336 in escaid 100

Yıldız

Tutkun

2011

Can J Chem Eng

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“…These results show that water transfer through the membrane has the same behavior as the acid transfer that causes an increase of the difference in ionic strength between the two aqueous phases. At higher surfactant concentrations, the emulsion becomes more stable, but an increase in the mass transfer resistance occurs in the membrane phase (Gu et al 1992), which produces a decrease in extraction efficiency. The concentration factor ranges from 1.3 to 1.6 when the concentration of surfactant decreases from 5% to 2%, respectively.…”

Section: Optimization Of Lactic Acid Extraction Conditions 421 Effect...mentioning

confidence: 99%

Batch and dynamic study of lactic acid extraction using emulsion liquid membrane

Berrama¹,

Pareau²,

Durand³

2015

Membr. Water Treat.

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The extraction of lactic acid by an emulsion liquid membrane (ELM), in batch and continuous mode, has been reported. On the basis of preliminary experiments, the optimum composition of the organic phase (membrane) is determined. When the SPan 80 is used as surfactant, the emulsion breakage exceeds 50%, but only 10% is obtained when the ECA4360 is used. The effects of surfactant, carrier and solute concentrations, phase volume ratio, and stirring speed on the extraction yield were examined and optimized. Surfactant, carrier and diluent used were ECA4360, trilaurylamine (TLA) and dodecane, respectively; 2-ethylhexane-1,3-diol (EHD) is used as a co-surfactant. Under optimal conditions, emulsion breaking is very low and the swelling is kept at its lowest level. Under the pH conditions of fermentation medium, the extraction yield is lower. A mixer-settler continuous system was used for testing these conditions. The residence time, the number of extraction stages and the stability of the emulsion were studied and optimized. The extraction yield obtained exceeds 90%.

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Separation Processes

Zhou¹,

Li³

2003

Digital Encyclopedia of Applied Physics

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Design Considerations

Cited by 15 publications

References 100 publications

The extraction of lactic acid by emulsion type of liquid membranes using alamine 336 in escaid 100

The extraction of lactic acid by emulsion type of liquid membranes using alamine 336 in escaid 100

Batch and dynamic study of lactic acid extraction using emulsion liquid membrane

Separation Processes

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