MONTREAL, QUEBEC, April 30, 2014 \u2013 Dundee Sustainable Technologies Inc. (\u201cDSTI\u201d) (CSE: DST) the developer and owner of proprietary technologies to serve the natural resource sector with environmentally friendly procedures, is pleased to announce an update on its cyanide and mercury-free gold extraction processes.<\/p>\n
Demonstration Plant<\/strong><\/p>\n The Company commenced the building of a $27 million demonstration plant located in Thetford Mines in the Province of Quebec in June 2013 and expects the plant to be commissioned before the end of the current year. Using the DSTI proprietary cyanide-free gold extraction process. The demonstration plant will handle concentrates at a rate of 15 tonnes per day These DSTI technologies have been recognized as a \u201cgreen technologies\u201d for which DSTI has been awarded $5,700,000 in grants to date for the construction of the demonstration plant of which $700,000 has been provided by the Government of Quebec and $5,000,000 by the Government of Canada through the Sustainable Development Technology Fund.<\/p>\n Successfully Demonstrated<\/strong><\/p>\n DSTI\u2019s cyanide and mercury-free gold extraction process was successfully demonstrated in its Thetford Mines laboratory and pilot plant. A great variety of ores and concentrates from 22 different countries, totalling over 100 Tonnes of material and over 1 000 hours of operation, were tested. Gold recoveries were above 90% in all cases and above 95% in most cases.<\/p>\n DSTI\u2019s technology as utilized in its pilot plant have established, as supported by engineering studies, a gold extraction yield higher than 90% using a closed-circuit Bromine-assisted chlorination process.\u201d<\/p>\n * Flotation concentrates requiring pre-treatment by oxidation<\/small><\/p>\n The pre-commercialization demonstration plant will have a capacity of 15 tonnes per day in order to asses on a pre-industrial scale DSTI\u2019s chlorination extraction technology under continuous operating conditions. The demonstration plant will serve as a reference for the establishment of full scale plants operating with the same technology.<\/p>\n","protected":false},"featured_media":0,"menu_order":653900,"template":"","class_list":["post-39501","news","type-news","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/dundeetechnologies.com\/fr\/wp-json\/wp\/v2\/news\/39501","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dundeetechnologies.com\/fr\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/dundeetechnologies.com\/fr\/wp-json\/wp\/v2\/types\/news"}],"wp:attachment":[{"href":"https:\/\/dundeetechnologies.com\/fr\/wp-json\/wp\/v2\/media?parent=39501"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n\n
\n Sources<\/td>\n Type<\/td>\n Gold Grade (g\/T)<\/td>\n Yield (%)<\/td>\n<\/tr>\n \n Canada (Quebec)<\/td>\n Ore<\/td>\n 2.58 g\/T<\/td>\n 97.5%<\/td>\n<\/tr>\n \n Canada (Quebec)<\/td>\n Ore<\/td>\n 13.9 g\/T<\/td>\n 95.4%<\/td>\n<\/tr>\n \n Canada (Ontario)*<\/td>\n Concentrate<\/td>\n 55.3 g\/T<\/td>\n 94.0%<\/td>\n<\/tr>\n \n Eastern Europe*<\/td>\n Concentrate<\/td>\n 7.5 g\/T<\/td>\n 91.0%<\/td>\n<\/tr>\n \n Canada (Quebec)*<\/td>\n Concentrate<\/td>\n 53.5 g\/T<\/td>\n 94.1%<\/td>\n<\/tr>\n \n Western USA*<\/td>\n Concentrate<\/td>\n 382 g\/T<\/td>\n 97.7%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n