Separation of Copper and Zinc Ions by Hollow Fiber Supported Liquid Membrane Containing LIX84 and PC-88A

Lee, Jae-chun; Jeong, Jaeseung; Kim, Byung-su; Kim, Min Seuk; Kobayashi, Mikio

doi:10.2320/matertrans.45.1915

Cited by 9 publications

(4 citation statements)

References 13 publications

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“…The Cyanex 272 has molecular weight of 290, a Brookfield viscosity of 142 × 10 −3 Pa s (142 cP) at 25 • C, density of 0.92 g/cm 3 at 24 • C, and a purity of 85%. The active component C 16 Kerosene (bp 180-270 • C) and tri-n-butyl-phosphate (TBP) supplied by Junsei Chemicals Co., Ltd., Japan were used as a diluent and phase modifier, respectively, for all sets of experiments.…”

Section: Chemicals/reagentsmentioning

confidence: 99%

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Separation of Co(II) and Li(I) by supported liquid membrane using Cyanex 272 as mobile carrier

Swain

Jeong

Lee

et al. 2007

Journal of Membrane Science

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Section: Chemicals/reagentsmentioning

confidence: 99%

“…The separation processes like Co-Ni [10][11][12][13], Co-Zn [14], and Co-Mn [15] have also been investigated by SLM technique. Several extractants such as D2EHPA [6][7][8]14,15], PC88A [15], LIX84 [16], and Cyanex 921 [17], etc. have been used for the extraction and separation of metals.…”

Section: Introductionmentioning

confidence: 99%

Separation of Co(II) and Li(I) by supported liquid membrane using Cyanex 272 as mobile carrier

Swain

Jeong

Lee

et al. 2007

Journal of Membrane Science

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“…As with solvent extraction, selective recovery of metal ions can be achieved through use of suitable extractant and manipulating chemistry of feed and stripping phases [ 7 , 8 , 10 ]. In many SLM studies, which involved recovering copper, chelating oxime extractants were found to transport copper preferably over other metal ions [ 11 , 12 , 13 ], whereas solvating extractants such as Cyanex 923 were succesful in transporting metals that assumed metal-salt forms in aqueous feed [ 14 , 15 ]. Some studies employed ionic liquids with tailorable chemical structure to facilitate transport of target metal ions [ 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Separation of Chromium (VI), Copper and Zinc: Chemistry of Transport of Metal Ions across Supported Liquid Membrane

et al. 2022

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Prior to applying supported liquid membranes (SLM) with strip dispersion for separation of chromium (VI), copper and zinc, suitable chemical settings were determined through solvent extraction and stripping studies. More than 90% of copper and zinc could be simultaneously extracted with at least 3% (v/v) di-(2-ethylhexyl)phosphoric acid (D2EHPA) at a feed equilibrium pH in the range of 3.5–5.0. For stripping, theoretical model equations derived and experimental results revealed that suitable concentrations of lower acid strength reagents can strip metals that have weaker metal-extractant bond without significantly stripping metals that have a stronger metal-extractant bond. Therefore, in a setup comprising three compartments separated by two SLM, we propose to fill the three compartments in the following order: feed—strip dispersion containing low acid strength reagent—strong acid. An organic phase with 4% (v/v) D2EHPA was used. From stripping experiments, 0.2 mol/L pH 3 citrate buffer, which resulted in the highest copper recovery (88.8%) and solution purity (99.0%), was employed as the low acid strength reagent while the strong acid consisted of 1 mol/L sulfuric acid. In 26 h, 99.1% copper was recovered by citrate buffer with 99.8% purity and 95.1% zinc was recovered by sulfuric acid with 98.4% purity. Chromium (VI), copper and zinc could be separated effectively using this separation strategy.

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“…Lee et al investigated the separation of zinc and copper by hollow fiber supported liquid membrane containing LIX 84 and PC-88A as mobile carriers. The influence of numerous operational factors on separation and permeation rate of Zn (II) and Cu (II) has been studied [25].…”

Section: Introductionmentioning

confidence: 99%

Transport of Zn (II) by TDDA-Polypropylene Supported Liquid Membranes and Recovery from Waste Discharge Liquor of Galvanizing Plant of Zn (II)

Rehman

Gul

Rashid

et al. 2017

Journal of Chemistry

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The facilitated passage of Zn (II) across flat sheet supported liquid membrane saturated with TDDA (tri-n-dodecylamine) in xylene membrane phase has been investigated. The effect of acid and metal ion concentration in the feed solution, the carrier concentration in membrane phase, stripping agent concentration in stripping phase, and coions on the extraction of Zn (II) was investigated. The stoichiometry of the extracted species, that is, complex, was investigated on slope analysis method and it was found that the complex (LH) 2 ⋅Zn(Cl 2 ) is responsible for transport of Zn (II). A mathematical model was developed for transport of Zn (II), and the predicted results strongly agree with experimental ones. The mechanism of transport was determined by coupled coion transport mechanism with H + and Cl − coupled ions. The optimized SLM was effectively used for elimination of Zn (II) from waste discharge liquor of galvanizing plant of Zn (II).

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Separation of Copper and Zinc Ions by Hollow Fiber Supported Liquid Membrane Containing LIX84 and PC-88A

Cited by 9 publications

References 13 publications

Separation of Co(II) and Li(I) by supported liquid membrane using Cyanex 272 as mobile carrier

Separation of Co(II) and Li(I) by supported liquid membrane using Cyanex 272 as mobile carrier

Separation of Chromium (VI), Copper and Zinc: Chemistry of Transport of Metal Ions across Supported Liquid Membrane

Transport of Zn (II) by TDDA-Polypropylene Supported Liquid Membranes and Recovery from Waste Discharge Liquor of Galvanizing Plant of Zn (II)

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