Copper extraction into emulsion liquid membranes using LIX 984N-C®

Sengupta, Bina; Sengupta, Ranjan; Subrahmanyam, N.

doi:10.1016/j.hydromet.2005.10.002

Cited by 78 publications

(33 citation statements)

References 7 publications

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“…Too little surfactant renders the membrane weak, while an increase in surfactant concentration leads to a larger diffusional resistance (Sengupta et al, 2006). The experiments were performed with the surfactant concentrations ranging from 5% to 10% and the results are shown in Figure 3.…”

Section: Effect Of Surfactant Concentrationmentioning

confidence: 99%

“…The change in the stripping phase volume fraction not only leads to a change in the emulsion properties, but also causes in an increase in the capacity of the emulsion to extract the solute (Sengupta et al, 2006). The effect of the phase ratio on the extraction rate, by maintaining membrane volume constant, is given in Figure 7 that, as the phase ratio is varied from 4/5 to 7/5.…”

Section: Effect Of Phase Ratiomentioning

confidence: 99%

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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 Surfactant Concentrationmentioning

confidence: 99%

Section: Effect Of Phase Ratiomentioning

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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“…AS are comprised of a benzene ring, phenolic hydroxyl, ortho-directing oximido, and para-directing alkyl (i.e., R group). In this group of chemical compounds, the para-directing R group has great impact on their charge distribution, steric-hindrance effect, and so on, which determines their extraction ability for Cu(II) [8,9]. At present, AS are produced by bio-extraction and artificial synthesis, with the artificial synthesis route being the dominant technique for the production of AS [10,11].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Structure of Alkyl Salicylaldoxime on Extraction of Copper(II)

Wang

et al. 2017

Minerals

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Four kinds of alkyl salicylaldoxime (AS) were investigated to probe the effect of molecular structure on the extraction of Cu(II). With the augment of R groups, tert-octylsalicylaldoxime and nonylsalicylaldoxime have much stronger extraction ability for Cu(II) than salicylaldoxime and tert-butylsalicylaldoxime, which is consistent with the rise of hydrophobicity (Log P) of the extractants. The umbrella structure of the R group can endow tert-octylsalicylaldoxime with stronger steric-hindrance effect than nonylsalicylaldoxime, which results in the better separation efficiency of Cu(II) from Fe(III) for tert-octylsalicylaldoxime. The extraction ability of the extractants for Cu(II) is related to the hydrophobicity and molecular size, as predicted from quantum chemistry calculation.

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“…There have been data on LIX 984N-C [9], LIX 54 [10], LIX 84 [11] for copper extraction by LEMs. In this sudy extractant LIX 664N has been selected based on the excellent extractive property of LIX 664N for copper by solvent extraction [12].…”

Section: Introductionmentioning

confidence: 99%

Extraction and Enrichment of Copper by Liquid Emulsion Membrane Using LIX 664N

Shah¹,

Tiwari²

2014

JEP

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Process intensification using liquid emulsion membranes (LEMs) for extraction of copper has been studied in this work. In LEM process the extraction and stripping processes are combined in one stage. The solubility of the solute or the chemical affinity between the solute and carrier reagent in the membrane results in the separation of the solute from the feed mixture. In this work the membrane phase comprised of LIX 664N as the extractant dissolved in kerosene and Span 80 as surfactant. The stripping phase was sulfuric acid with 180 g/l concentration and feed phase had copper concentration of 3.5 g/l. Effect of various process parameters such as batch contact time, speed of agitation, W:O ratio and treat ratio has been experimentally investigated to get better insight of the process. The maximum enrichment of copper in the internal phase obtained was 11.6 times with batch contact time of 10 minutes, agitation speed of 300 rpm and treat ratio of 6:1.

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Copper extraction into emulsion liquid membranes using LIX 984N-C®

Cited by 78 publications

References 7 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

Effect of the Structure of Alkyl Salicylaldoxime on Extraction of Copper(II)

Extraction and Enrichment of Copper by Liquid Emulsion Membrane Using LIX 664N

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