Patents

Arsenic Recovery From Copper-Arsenic Sulphides

PATENT

Arsenic Recovery From Copper-Arsenic Sulphides

David Dixon
project

Vancouver

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Status: Submitted

28 Nov 2013
  • leach
  • arsenic
  • copper-arsenic
  • recovery
  • scorodite
  • steps

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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