Process for reduced alkali consumption in the recovery of silver

The present invention is directed to a precious metal recovery process in which basic ferric sulphates and/or jarosites are controlled by hot curing of the autoclave discharge slurry followed by decomposition of argentojarosite using strong acid consumers.

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Bibliographische Detailangaben
Hauptverfasser: CHOI YEONUK, KONDOS PETER D, MCMULLEN JACQUES
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention is directed to a precious metal recovery process in which basic ferric sulphates and/or jarosites are controlled by hot curing of the autoclave discharge slurry followed by decomposition of argentojarosite using strong acid consumers.