Recovery of gold from gold sulphides

C - Chemistry – Metallurgy – 22 – B

Patent

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Details

C22B 1/02 (2006.01) B01D 46/00 (2006.01) B01D 47/00 (2006.01) B01D 49/00 (2006.01) B01D 50/00 (2006.01) B01D 53/00 (2006.01) C22B 1/06 (2006.01) C22B 1/10 (2006.01) C22B 5/02 (2006.01) C22B 11/00 (2006.01) C22B 11/02 (2006.01)

Patent

CA 2375546

Apparatus suitable for use in the recovery of gold from a source material containing gold sulphides, the apparatus including a heated retort for receiving the source material so as to separate it into a solids component and a volatiles component, a high temperature filter arranged for receiving the volatiles component from the retort and separating it into a primarily gaseous mixture which includes sulphur dioxide gas and particulates, and scrubbing means for receiving the gaseous mixture and removing selected components therefrom so that the resultant gaseous mixture may be vented to atmosphere.

Cette invention a trait à un appareil se prêtant à la récupération d'or dans une substance source contenant des sulfures d'or, lequel appareil comprend une cornue chauffée recevant la substance source afin de la diviser en composants solides et en composants volatils, un filtre haute température conçu pour recevoir les composants volatils en provenance de la cornue et pour les séparer en un mélange essentiellement gazeux renfermant du gaz de dioxyde de soufre. L'appareil comporte aussi un système de lavage recevant le mélange gazeux et en extrayant des composants choisis, de manière à pouvoir rejeter dans l'atmosphère le mélange gazeux résultant.

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