Method of refining copper bullion comprising antimony and/or...

Details Method of refining copper bullion comprising antimony and/or... Method of refining copper bullion comprising antimony and/or...

C - Chemistry, Metallurgy

22

B

C22B 15/14 (2006.01) C22B 1/11 (2006.01)

Patent

CA 2756917

The disclosure relates to a process for refining of copper bullion comprising arsenic and/or antimony in order to enable extraction of the metal values bound in the copper bullion. The process comprises two separate metallurgical process steps wherein the first step comprises selective conversion of elements having high affinity to arsenic and antimony and the second step comprises oxidation of arsenic and/or antimony to a lead oxide based slag.

L'invention concerne un procédé permettant d'affiner un lingot de cuivre comprenant de l'antimoine et/ou de l'arsenic afin de permettre l'extraction les valeurs métalliques associées au lingot de cuivre. Ledit procédé comprend deux étapes séparées de processus métallurgique, la première étape étant une conversion sélective d'éléments présentant une affinité élevée pour l'arsenic et l'antimoine et la seconde étant une oxydation de l'arsenic et/ou de l'antimoine en une scorie à base d'oxyde de plomb.

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