Method and system for metal recovery from arsenical bearing sulfides ores
AssigneeDundee Sustainable Technologies Inc.
InventorsJEAN-MARC LALANCETTE, DAVID LEMIEUX, ROMAIN BARBAROUX, GABRIEL GARCIA-CURIEL, KHALIL NASRALLAH
Life of this patent
Estimating the term…
Abstract
There is provided a method for the removal of arsenic from an arsenical bearing sulfides ore, comprising a thermal treatment of arsenical sulfide in the presence of sulfur dioxide, yielding a calcine and a sublimate, the sublimate containing arsenious oxide. The method allows recovering metallic value from an arsenic-bearing metallic sulfides ore, by recovery of the calcine comprising the metallic value of the ore.
Claims15
A method for the removal of arsenic from an arsenical bearing sulfides ore, comprising a thermal treatment of arsenical sulfide in the presence of sulfur dioxide, yielding a calcine and a sublimate, the sublimate containing arsenious oxide.
A method for recovering metallic value from an arsenic-bearing metallic sulfides ore, comprising a thermal treatment of arsenical sulfide in a sulfur dioxide atmosphere, and recovery of a calcine comprising the metallic value of the ore.
Dependencies are inferred from the claim text.