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:: Dundee Sustainable Technologies Achieves a Gold Recovery of 98.8% in Piloting Campaign with ENAMI
Dundee Sustainable Technologies Inc. is proud to announce that it has successfully completed its piloting campaign on gold concentrates (the "Concentrate") provided by Empresa Nacional de Minerķa, Chile ("ENAMI"), using DST's proprietary technology.
In September 2015, DST received 2 Tonnes of Concentrate from ENAMI to be used for Piloting (refer to September 23, 2015 press release). The Concentrate contained 121 g/T of gold, 9.2% copper and a mercury content of 787 g/T. Through controlled oxidation, DST removed 99.7% of the sulphide and 99.6% of the mercury content. The calcine material was then submitted to acid and water leaching where 99% of the copper was recovered as copper sulphate. DST's chlorination process that followed achieved a gold recovery of 98.8% and a final gold deposition over silica recovery of 99.8%.
DST is pleased with the results of the piloting phase. This Piloting is part of a phased approach established between DST and ENAMI with the objective of implementing a processing facility, utilizing DST's patented technology, in Chile.
DST and ENAMI will advance towards developing the technical and economic feasibility criteria for the implementation on a commercial scale of the DST process in Chile.
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