2000
DOI: 10.1080/07366290008934682
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OPTIONS FOR THE SEPARATION OF COPPER(n) AND ZINC(II) FROM CHLORIDE SOLUTIONS BY KELEX 100®

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Cited by 11 publications
(4 citation statements)
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“…The total concentration of zinc(II) ions in the chloride aqueous phase is equal to false[ Zn + 2 false] normalT , aq = false[ Zn + 2 false] aq + false[ ZnCl + false] aq + false[ ZnCl 2 false] aq + false[ ZnCl 3 false] aq + false[ ZnCl 4 2 false] aq where false[ ZnCl i 2 italici false] aq = β i [ Z n ( + 2 ) ] false[ normalC normall false] i and β i is the overall stability constant of i th zinc(II) chlorocomplexes. …”
Section: Resultsmentioning
confidence: 99%
“…The total concentration of zinc(II) ions in the chloride aqueous phase is equal to false[ Zn + 2 false] normalT , aq = false[ Zn + 2 false] aq + false[ ZnCl + false] aq + false[ ZnCl 2 false] aq + false[ ZnCl 3 false] aq + false[ ZnCl 4 2 false] aq where false[ ZnCl i 2 italici false] aq = β i [ Z n ( + 2 ) ] false[ normalC normall false] i and β i is the overall stability constant of i th zinc(II) chlorocomplexes. …”
Section: Resultsmentioning
confidence: 99%
“…The use of one bifunctional reagent instead of the mixture of two reagents was also proposed. Alkyl derivatives of 8-hydroxyquinoline (HL) (KELEX 100, LIX 26) can form chelates with metal ions (ML 2 ), especially copper, and after protonation the ion pairs with metal chloro complexes (MCl 4 (H 2 L) 2 ).…”
Section: Introductionmentioning
confidence: 99%
“…Unfortunately, some protonation of the extractant occurs during the stripping The reagent must be then transformed into the hydrochloride form by washing with chloride solution The theoretic aspects of copper(II) and zinc(II) extraction were described in previous papers. …”
Section: Introductionmentioning
confidence: 99%
“…The change of the system from chloride into sulfate in the extraction−stripping process was also considered. It can be achieved using mixed reagents: a basic reagent and a chelating reagent, a solvating reagent and a chelating compound, , or a bifunctional extractant. Kelex 100 and Lix 26, which contain 7-alkyl-8-hydroxyquinoline (HL) as the active substance, can be considered as such a bifunctional extractant . It can react as a basic reagent transferring metal chlorocomplexes into organic phase, e.g., in the form MCl 4 (H 2 L) 2 .…”
Section: Introductionmentioning
confidence: 99%