Influence of temperature on the extraction of zinc by LIX 34

Hoh, Ying‐Chu; Chuang, Wen-Shou

doi:10.1016/0304-386x(83)90082-8

Cited by 15 publications

(4 citation statements)

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“…The residual copper in the membrane phase decreases from 16.8% to 11.8%. The results clearly showed that the increasing temperature is more favorable to the stripping process, because the acid stripping reaction is usually a definite endothermic process . Thus, the higher stripping efficiency can facilitate the formation of the greater concentration gradient of both HA and copper complex at the interfaces between the membrane and aqueous phases, thus promoting the Cu(II) transport.…”

Section: Resultsmentioning

confidence: 96%

“…The results clearly showed that the increasing temperature is more favorable to the stripping process, because the acid stripping reaction is usually a definite endothermic process. 31 Thus, the higher stripping efficiency can facilitate the formation of the greater concentration gradient of both HA and copper complex at the interfaces between the membrane and aqueous phases, thus promoting the Cu(II) transport. On the other hand, because the raising temperature can promote the diffusion of copper complexes and carrier in the membrane phase, the initial copper flux in the feed phase can increase from 479 mmol m 2 h −1 to 759 mmol m 2 h −1 with increasing temperature from 15 °C to 45 °C.…”

Section: Resultsmentioning

confidence: 99%

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High Flux Recovery of Copper(II) from Ammoniacal Solution with Stable Sandwich Supported Liquid Membrane

Wang

Chen

et al. 2015

Ind. Eng. Chem. Res.

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The recovery of Cu(II) from ammoniacal solutions with the sandwich supported liquid membrane was studied by using 4-ethyl-1-phenyl-1,3-octadione as the carrier. The transport behavior of Cu(II), membrane stability and selectivity were investigated. The transport efficiency of Cu(II) in the membrane module is evidently dependent on the feed pH, carrier concentration, phase ratio and temperature, but almost independent of the H2SO4 concentration in receiving phase. The increase of carrier concentration and temperature can simultaneously enhance Cu(II) transport and initial copper flux in the feed phase, while both of them decrease as the phase ratio increases. The initial copper flux can reach 759 mmol m–2 h–1 at 45 °C. A satisfied membrane stability was obtained, and the copper concentration in the receiving phase can reach 3.91 g L–1 via uphill transport after five cycles. The main transport resistance could derive from the diffusion process of the copper complexes through the receiving phase/membrane interface. Moreover, the Cu(II) can be selectively recovered over Ni(II) and Zn(II). The high flux and good membrane stability makes the system promising for recovering metal values from various industrial process effluents.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

High Flux Recovery of Copper(II) from Ammoniacal Solution with Stable Sandwich Supported Liquid Membrane

Wang

Chen

et al. 2015

Ind. Eng. Chem. Res.

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“…Hatton The effect of temperature on the extraction of zinc by LlX 34 diluted with Kermac 470B was investigated. 144 The extraction was exothermic. The removal of iron from solutions containing copper and other metal ions with Versatic acid was studied.…”

Section: Solvent Extraction/ion Exchangementioning

confidence: 99%

Developments in Physical Chemistry and Basic Principles of Extractive and Process Metallurgy in 1983

Sohn¹

1984

JOM

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“…To date, a number of studies have examined the behaviour of this commercial extractant with respect to the extraction of Pb(II) from acetic media, Zn from cyanide media, Zn, Cd and Hg from nitrate media, and Zn and Cu from acidic chloride media . Furthermore, the use of some synthesized 8‐sulphonamidoquinoline derivatives in conventional solvent extraction processes has also been investigated .…”

Section: Introductionmentioning

confidence: 99%

Palladium(II) extraction from nitric acid solutions byLIX34

Elizalde

Menoyo

Ocio

et al. 2014

J of Chemical Tech & Biotech

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BACKGROUND: Sulphur-containing reagents are known to extract Pd(II) very efficiently. Among them, 8-(alkarylsulphonamido) quinolines have shown a high extractive ability towards several metal ions. In this work, the distribution equilibria of Pd(II) from nitric acid solutions of 1.0 mol L −1 ionic strength by LIX 34 dissolved in toluene have been studied as a function of both extractant and metal concentration, equilibrium pH and nitrate ion concentration. The effect of the alkyl chain length of the extractant molecule on the extraction of Pd(II) has also been investigated. RESULTS: The extraction of Pd(II) from acidic solutions by LIX 34 is slow but low concentrations of the extractant are required for quantitative extraction. It does not depend on pH in the 1-2.3 range whereas nitrate ion concentration has little influence on the extraction process. The synthesized compound 4-methyl-N-8-quinolinylbenzenesulphonamide, which presents a structure very close to 4-dodecyl-N-8-quinolinylbenzenesulphonamide, which is the active component in LIX 34, shows the same extraction ability towards palladium. CONCLUSIONS: The experimental data have been treated numerically and can be explained by assuming the formation of the complexes PdL 2 (log k 020 = 10.46 ± 0.12) and Pd(NO 3 )L (log k 110 = 4.99 ± 0.18), the former being the predominant species.

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Influence of temperature on the extraction of zinc by LIX 34

Cited by 15 publications

References 1 publication

High Flux Recovery of Copper(II) from Ammoniacal Solution with Stable Sandwich Supported Liquid Membrane

High Flux Recovery of Copper(II) from Ammoniacal Solution with Stable Sandwich Supported Liquid Membrane

Developments in Physical Chemistry and Basic Principles of Extractive and Process Metallurgy in 1983

Palladium(II) extraction from nitric acid solutions byLIX34

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