METHOD FOR HIGH AND SELECTIVE EXTRACTION OF SILVER

The present invention relates to a composition comprising a first weak acid, an oxidant and a metal complexing agent, wherein the composition has a pH in the range of 2 to 4. The present invention also relates to a method of preparing such a composition, and a method of extracting silver using such...

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Bibliographische Detailangaben
Hauptverfasser:	LIM, Zheng Bang, ANG, Sook Bee Melissa, KOH, Cheng Yan Jeane, YIN, Xi Jiang, GOH, Fu Wei Thomas
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY DISPOSAL OF SOLID WASTE FERROUS OR NON-FERROUS ALLOYS METALLURGY PERFORMING OPERATIONS PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS RECLAMATION OF CONTAMINED SOIL SOIL TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	The present invention relates to a composition comprising a first weak acid, an oxidant and a metal complexing agent, wherein the composition has a pH in the range of 2 to 4. The present invention also relates to a method of preparing such a composition, and a method of extracting silver using such a composition. La présente invention concerne une composition comprenant un premier acide faible, un oxydant et un agent complexant métallique, la composition ayant un pH dans la plage de 2 à 4. La présente invention concerne également un procédé de préparation d'une telle composition, et un procédé d'extraction d'argent à l'aide d'une telle composition.