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Solvent extraction of mercury using Alamine 304

Extraktion von Quecksilber mit Alamin 304

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Summary

A study has been undertaken to develop a solvent extraction system for mercury using Alamine 304 in aqueous chloride medium. The parameters investigated included reagent concentration, acid concentration, pH, aqueous to organic phase ratio, and rate of extraction and stripping. The study shows that mercury can be extracted rapidly and efficiently from aqueous chloride solutions. A number of aqueous stripping reagents removed more than 90% of the mercury from the organic phase with only one equilibrium. These include HNO3, NaOH and EDTA.

Zusammenfassung

Die Extraktion von Quecksilber aus der wäßrigen Lösung des Chlorids mit Alamin 304 wurde untersucht. Die Konzentration des Reagens, der Säure, das pH, das Verhältnis der wäßrigen zur organischen Phase sowie das Extraktionsverhältnis wurden geprüft. Die Extraktion verläuft rasch und wirkungsvoll. Eine Reihe wäßriger Reagenzien entzieht mehr als 90% des Quecksilbers aus der organischen Phase. Dazu gehören Salpetersäure, Natronlauge und EDTA.

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McDonald, C., Pahlavan, G.H. Solvent extraction of mercury using Alamine 304. Mikrochim Acta 78, 77–82 (1982). https://doi.org/10.1007/BF01206692

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  • DOI: https://doi.org/10.1007/BF01206692

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