ARSENIC RECOVERY FROM COPPER-ARSENIC SULPHIDES

Title:

ARSENIC RECOVERY FROM COPPER-ARSENIC SULPHIDES

Document Type and Number:

WIPO Patent Application WO/2013/173914

Kind Code:

A8

Abstract:

Methods are provided for precipitating arsenic from an acidic sulphate copper leach solution as a stable scorodite precipitate prior to any refining steps. The method utilizes pyrite or chalcopyrite in the leach train as the primary source of ferric ions for the precipitation of scorodite.

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Inventors:

DIXON DAVID G (CA)
DYER LAURENCE (CA)
QUIROZ CASTILLO LUIS (CA)

Application Number:

PCT/CA2013/000511

Publication Date:

February 13, 2014

Filing Date:

May 24, 2013

Export Citation:

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Assignee:

UNIV BRITISH COLUMBIA (CA)

International Classes:

C01G28/02; C01B3/00; C22B3/08; C22B3/46

Attorney, Agent or Firm:

KINGWELL, Brian, G. (2300-1055 West Georgia StreetPO Box, Vancouver British Columbia V6E 3P3, CA)

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