Dundee Sustainable Technologies Inc.

Romain Barbaroux

Jean-Marc Lalancette

David Lemieux

Khalil Nasrallah

Gabriel Garcia Curiel

Gabriel Garcia-Curiel

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.

Method and system for metal recovery from arsenical bearing sulfides ores

A method of fabrication of arsenic glass, comprising forming pellets of an arsenic-containing glass-forming mixture comprising arsenic in a range between about 30 and about 50% w/w and glass forming elements, and melting the pellets by direct heating to a temperature in a range between about 950 and about 1250&#xb0; C.

System and method of fabrication of arsenic glass

A method for vitrification of arsenic and antimony, comprising substituting oxygen to sulfur on thiosalts, incorporating resulting sodium arsenate and sodium antimonate into a sodium silicate glass-forming mixture and vitrifying the sodium silicate glass-forming mixture into a resulting glass sequestering the arsenic and antimony.

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St-Joseph de Coleraine, Canada

Romain Barbaroux