Mass transfer coefficients in liquid–liquid extraction

Tudose, R. Z.; Apreotesei, Gabriela

doi:10.1016/s0255-2701(00)00146-x

Cited by 10 publications

(9 citation statements)

References 5 publications

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“…[18][19][20][21][22] Since the structures of the extractants significantly influence such physicochemical property and extraction behavior, macrocyclic compound such as calixarene derivatives are attractive. 23) In our previous work by the batchwise method, methyl ketonic 24) and 2-pyridyl 25) derivatives of pt-octylcalix [4]arene as extractants exhibited high extraction selectivity for silver among precious metals in nitrate media. However, silver extraction rates between two derivatives exhibited large difference.…”

Section: Introductionmentioning

confidence: 95%

“…Chemical structures of p-t-octylcalix [4]arene type extracta nts and their abbreviations.are shown in Fig. 1 acetone, sodium iodide (1.35 g, 9.00 mmol) and phenacyl chloride (1.39 g, 9.00 mmol) were added and stirred for 20 min at room temperature.…”

Section: Reagentsmentioning

confidence: 99%

“…[1][2][3][4] In such processes, the liquidliquid interface plays a key role since the transport of metal ions occurs through the interface. 5) However, the interfacial chemistry of extraction systems is still incompletely understood.…”

Section: Introductionmentioning

confidence: 99%

“…However, silver extraction rates between two derivatives exhibited large difference. 26) In the present work, the further study was investigated to evaluate interfacial tension of 2-pyridyl, methyl ketonic and phenyl ketonic derivatives of p-t-octylcalix [4]arene and to further understand the relationship with extraction rate in nitrate media.…”

Section: Introductionmentioning

confidence: 99%

“…Interfacial activities of calix[4]arene derivatives were evaluated by comparing the obtained interfacial tension values. The interfacial excess and the average area per the adsorbed extractant molecule at chloroform / nitric acid interface were estimated from the Gibbs' adsorption equation and were used to investigate the relationship with silver extraction by using calix [4]arene derivatives in nitrate media. From the result, silver extraction rate with calix[4]arene derivatives in nitrate media was significantly related to their interfacial activities.…”

mentioning

confidence: 99%

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Effect of Interfacial Activity on Silver Extraction Rate with Calix[4]arene Derivatives in Nitrate Media

Kim¹,

Morisada²,

Kawakita³

et al. 2014

J.I.E.

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arene derivatives as extraction reagents have been prepared to investigate silver extraction rate in nitrate media by batch-wise method. The interfacial tension was also measured by the drop volume method to investigate the effect of interfacial activity on silver extraction rate with the calix[4]arene derivatives in chloroform / nitric acid media by varying the concentrations of the extraction reagent and nitric acid. Interfacial activities of calix[4]arene derivatives were evaluated by comparing the obtained interfacial tension values. The interfacial excess and the average area per the adsorbed extractant molecule at chloroform / nitric acid interface were estimated from the Gibbs' adsorption equation and were used to investigate the relationship with silver extraction by using calix [4]arene derivatives in nitrate media. From the result, silver extraction rate with calix[4]arene derivatives in nitrate media was significantly related to their interfacial activities.

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Section: Introductionmentioning

confidence: 95%

Section: Reagentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Effect of Interfacial Activity on Silver Extraction Rate with Calix[4]arene Derivatives in Nitrate Media

Kim¹,

Morisada²,

Kawakita³

et al. 2014

J.I.E.

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Removal of Hydrophobic Volatile Organic Compounds in an Integrated Process Coupling Absorption and Biodegradation—Selection of an Organic Liquid Phase

Darracq

Couvert

Couriol

et al. 2012

Water Air Soil Pollut

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Since usual processes involve water as absorbent, they appear not always really efficient for the treatment of hydrophobic VOC. Recently, absorption and biodegradation coupling in a two-phase partitioning bioreactor (TPPB) proved to be a promising technology for hydrophobic compound treatment. The choice of the organic phase, the nonaqueous phase liquid (NAPL) is based on various parameters involved in both steps of the process, hydrophobic VOC absorption in a gas-liquid contactor, and biodegradation in the TPPB. VOC solubility and diffusivity in the selected NAPL, as well as NAPL viscosity, seems to be the main parameters during the absorption step, while biocompatibility, namely the absence of toxic effect of the NAPL towards microorganisms, non-biodegradability and VOC partition coefficient between NAPL and water were revealed as the key factors during the biodegradation step. The screening of the various NAPL available in the literature highlighted two families of compounds matching the required conditions for the proposed integrated process, silicone oils and ionic liquids.

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Rationalizing the use of mutual diffusion prediction models in non-ideal binary mixtures

Alabi-Babalola,

Zhong,

Moggridge

et al. 2024

Chemical Engineering Science

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Mass transfer coefficients in liquid–liquid extraction

Cited by 10 publications

References 5 publications

Effect of Interfacial Activity on Silver Extraction Rate with Calix[4]arene Derivatives in Nitrate Media

Effect of Interfacial Activity on Silver Extraction Rate with Calix[4]arene Derivatives in Nitrate Media

Removal of Hydrophobic Volatile Organic Compounds in an Integrated Process Coupling Absorption and Biodegradation—Selection of an Organic Liquid Phase

Rationalizing the use of mutual diffusion prediction models in non-ideal binary mixtures

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