Au(I) extraction by LIX-79/n-heptane using the pseudo-emulsion-based hollow-fiber strip dispersion (PEHFSD) technique

Sonawane, J. V.; Pabby, Anil Kumar; Sastre, Ana Marı́a

doi:10.1016/j.memsci.2007.05.016

Cited by 48 publications

(22 citation statements)

References 20 publications

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“…The value of R 2 is 0.9692, in good agreement with the Eq. (14). In the same way, another kinetic equation can be developed as below: …”

Section: Kinetic Analysismentioning

confidence: 99%

“…In our previous works, dispersion supported liquid membrane (DSLM) for transport of rare earths has been studied and the transport results were very obvious [11][12][13]. In this work, based on DSLM of our previous works and pseudo-emulsion-based hollow fiber stripping dispersion (PEHFSD) techniques [14], the stripping dispersion hollow fiber liquid membrane system (SDHFLM) with HCl as stripping agent and 2-ethyl hexyl phosphoric acid-mono-2-ethyl hexyl ester (PC-88A) dissolved in kerosene as the mobile carrier was proposed. In SDHFLM process, a very thin organic film was developed within the internal surface of fibers, which was used for separation of the feed phase and stripping phase, due to the wetting affinity of the hydrophobic hollow fibers and dispersion phase.…”

Section: Introductionmentioning

confidence: 97%

See 1 more Smart Citation

Stripping dispersion hollow fiber liquid membrane containing PC-88A as carrier and HCl for transport behavior of trivalent dysprosium

Pei

Wang

Guo

et al. 2011

Journal of Membrane Science

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“…The value of R 2 is 0.9692, in good agreement with the Eq. (14). In the same way, another kinetic equation can be developed as below: …”

Section: Kinetic Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Stripping dispersion hollow fiber liquid membrane containing PC-88A as carrier and HCl for transport behavior of trivalent dysprosium

Pei

Wang

Guo

et al. 2011

Journal of Membrane Science

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“…The main types of liquid membrane systems include Emulsion Liquid Membrane (ELM) (Li et al, 1997), Supported Liquid Membrane (SLM) (Bloch et al, 1967), Bulk Liquid Membrane (BLM), Flowing Liquid Membrane (FLM) (Teramoto et al, 1989), Supported Emulsion Liquid Membrane (SELM) (Fouad et al, 2008;Sonawane et al, 2007), Hollow Fibre Contained Liquid Membrane (HFCLM) (Gabelman et al, 1999) and Supported Liquid Membrane with Stripping Dispersion (SLMSD) (Basualto et al, 2003;Gu et al, 2006) etc. The potential advantages of LM techniques over traditional separation techniques and solid membranes techniques are lower capital and operational costs, lower energy and extractant consumption and higher concentration factors and fluxes.…”

Section: Introductionmentioning

confidence: 99%

Uptake of Palladium Using Liquid Emulsion Membrane Technique

Kumar¹,

Mishra²,

Seshadri³

2014

IJC

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The waste stream generated at the reprocessing facility (first cycle raffinate-Hi level waste) contains Palladium as one of the fission products. The recovery of Palladium from the waste stream reduces the activity burden and lends its use for catalytic applications. This paper deals with its recovery from the waste stream generated at various stages of nuclear fuel cycle using liquid emulsion membrane technique. Complexants chosen were based on the chelating ability with metal ions with high stability constant in the waste stream. Complexants 8-hydroxy quinoline, Thio salicylic acid, dithiazone, cupferron, 1-Niroso-2-naphthol, Quinalizarin were chosen as complexants. The effect of surfactant concentration, complexant concentration, agitating speed, and emulsifcation time on the emulsion stability have been studied. Treat ratio, the ratio of the emulsion phase to the external phase and the impeller speed on the removal of Palladium have been studied. Results show that stable emulsion could be prepared by using 1.5 ml of surfactant span 80 in 50 ml emulsion, with impeller speed 3000 RPM, for duration of 20 minutes using complexants of strength of 70-200 moles/m 3. Effective recovery of Pd could be achieved by using strippant of pH 1-3.7 in the emulsion phase at 250-300 RPM of impeller speed.

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“…The main types of liquid membrane systems include emulsion liquid membrane (ELM), 13 supported liquid membrane (SLM), 14 bulk liquid membrane (BLM), flowing liquid membrane (FLM), 15 electrostatic pseudo liquid membrane (EPLM), 10 supported emulsion liquid membrane (SELM), 16,17 hollow fiber contained liquid membrane (HFCLM), 18 and supported liquid membrane with stripping dispersion (SLM-SD), 19,20 etc. The potential advantages of LM techniques, over traditional separation techniques and solid membranes techniques, are low capital and operating costs, low energy and extractant consumption, high concentration factors and high fluxes.…”

Section: Introductionmentioning

confidence: 99%

Transport of Tb³⁺in Dispersion Supported Liquid Membrane System with Carrier P507

Pei¹,

Yao²,

Wang³

et al. 2010

Chin. J. Chem.

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The Tb 3＋ transport in dispersion supported liquid membrane (DSLM) consisting of polyvinylidene fluoride membrane (PVDF) as the liquid membrane support and dispersion solution including HCl solution as the stripping solution and 2-ethyl hexyl phosphonic acid-mono-2-ethyl hexyl ester (P507) dissolved in kerosene as the membrane solution, has been studied. The effects of pH value, initial concentration of Tb 3＋ and different ionic strength in the feed phase, volume ratio of membrane solution and stripping solution, concentration of HCl solution, concentration of carrier, different stripping agents in the dispersion phase on transport of Tb 3＋ has also been investigated, respectively. As a result, the optimum transport conditon of Tb 3＋ was that concentration of HCl solution was 4.0 mol/L, concentration of P507 was 0.10 mol/L, and volume ratio of membrane solution and stripping solution was 1.0 in the dispersion phase, and pH value was 5.2 in the feed phase. Ionic strength had no obvious effect on transport of Tb 3＋ . Under the optimum condition studied, when initial concentration of Tb 3＋ was 1.0×10 -4 mol/L, the transport rate of Tb 3＋ was up to 95.2% during the transport time of 95 min. The kinetic equation was developed in terms of the law of mass diffusion and the theory of interface chemistry. The results were in good agreement with the literature data.Keywords dispersion supported liquid membrane, dispersion phase, feed phase, 2-ethyl hexyl phosphonic acid-mono-2-ethyl hexyl ester, Terbium

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Au(I) extraction by LIX-79/n-heptane using the pseudo-emulsion-based hollow-fiber strip dispersion (PEHFSD) technique

Cited by 48 publications

References 20 publications

Stripping dispersion hollow fiber liquid membrane containing PC-88A as carrier and HCl for transport behavior of trivalent dysprosium

Stripping dispersion hollow fiber liquid membrane containing PC-88A as carrier and HCl for transport behavior of trivalent dysprosium

Uptake of Palladium Using Liquid Emulsion Membrane Technique

Transport of Tb³⁺in Dispersion Supported Liquid Membrane System with Carrier P507

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Au(I) extraction by LIX-79/n-heptane using the pseudo-emulsion-based hollow-fiber strip dispersion (PEHFSD) technique

Cited by 48 publications

References 20 publications

Stripping dispersion hollow fiber liquid membrane containing PC-88A as carrier and HCl for transport behavior of trivalent dysprosium

Stripping dispersion hollow fiber liquid membrane containing PC-88A as carrier and HCl for transport behavior of trivalent dysprosium

Uptake of Palladium Using Liquid Emulsion Membrane Technique

Transport of Tb3+ in Dispersion Supported Liquid Membrane System with Carrier P507

Contact Info

Product

Resources

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Transport of Tb³⁺in Dispersion Supported Liquid Membrane System with Carrier P507