Press Releases

Patent Notice of Allowance for Collection of gold over silica

August 05, 2015

Montreal, Quebec, August 5, 2015 – Dundee Sustainable Technologies Inc. (“DST” or the “Corporation”) (CSE: DST) is pleased to announce that the United States Patent and Trademark Office has issued a notice of allowance for DST patent application (number 13/957,002) pertaining to gold recovery over silica.

Collection of gold over silica

This patent is related to a method for recovering gold from a pregnant solution resulting from halogen leaching of an ore, while facilitating the recycling of the halogens from the resulting barren solution. The same patent is also pending in Canada and several Latin America countries.

An essential complement of gold extraction with halogens

This method has been proven well adapted to the halogens extraction process and a simple fusion of the loaded silica makes pure gold recovery easy and complete.

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