Dundee Sustainable Technologies Completes its Arsenic Stabilization Plant
Dundee Sustainable Technologies Completes its Arsenic Stabilization Plant
– Momentum Public Relations – Jan. 28, 2016
Dundee Sustainable Technologies Inc. (“DST” or the “Corporation”) (DST:CSE) is proud to announce that it has successfully achieved, as part of the commissioning of its newly constructed arsenic stabilization pilot plant, its first casting of arsenical glass, using DST’s proprietary technology. This technology is designed for the sequestration of arsenic in a stable glass form.
In December 2015, arsenical glass was smoothly casted from a stabilization trial run. The produced glass was submitted to the United States environmental protection agency’s (EPA) toxicity characterization leaching procedure (TCLP, Method 1311) and the non-toxicity of the arsenical glass was confirmed well below the norm.
DST’s process uses lower cost chemicals to economically produce a more stable product than current industrial practices. This process to stabilize arsenic is becoming an attractive technique to segregate the arsenic and is therefore opening new opportunities for remediation sites and for deposits or concentrates considered to contain too much arsenic to be exploited using conventional approaches.
The production of this glass is a major achievement in DST’s efforts to demonstrate the technical and economic viability of the arsenic stabilization technology on an industrial scale. DST will advance with strategic partners towards developing the technical and economic feasibility criteria for the implementation, on a commercial scale, of the DST process.
About Dundee Sustainable Technologies, a company controlled by Dundee Corporation
The Corporation is engaged in the development of environment-friendly technologies for the treatment of materials in the mining industry. Through the development of patented, proprietary processes, DST extracts precious and base metals from ores, concentrates and tailing, while stabilizing contaminants such as arsenic, which could not otherwise be extracted or stabilized with conventional processes because of metallurgical issues or environmental considerations.
At present, DST most advanced proprietary processes are associated to the extraction of precious metals using a chlorination process which provides a cyanide-free alternative for the exploitation of gold deposits. The primary benefits of the innovative technology are shorter processing times, a closed-loop operation eliminating the need for costly tailings pond, and a reduced environmental footprint related to the inert and stable characteristics of the cyanide free tailings.
The chlorination process developed by DST is a recognized “green technology” for which it was awarded a $5.7 million grant for the construction and operation of a demonstration plant. The plant will serve as a demonstration platform for the chlorination process on an industrial scale and under continuous operating conditions.
In addition to this chlorination process, DST completed the construction of a pilot plant designed to demonstrate its arsenic stabilization process which is designed for the sequestration of arsenic in a stable glass form. This process is becoming an attractive technique to segregate the arsenic and is therefore opening opportunities for materials considered to contain too much of this toxic material to be exploited or stabilized using conventional approaches.
- Published in Dundee Sustainable Technologies, Green Technology, Mining, News Home, Technology
Dundee Sustainable Technologies Enters Into an Agreement with ENAMI
Dundee Sustainable Technologies Inc. (“DST”) (CSE:DST) is pleased to announce that it has entered into an agreement with Empresa Nacional de Mineria, Chile (“ENAMI”) for the processing of gold concentrates (the “Concentrate”) produced by ENAMI’s operations, using DST’s proprietary Technology (the “Agreement”).
DST purchased from ENAMI 2 Tonnes of Concentrate to be used for a piloting campaign (“Piloting”), according to given metallurgical discounts and treatment charges and will retain all of the metal value extracted during the Piloting. The concentrate was received by DST in its Thetford Mines facility on September 15th.
This Agreement 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.
The Piloting will further support the applicability of the DST process. Following the Piloting, DST and ENAMI will advance towards developing the technical and economic feasibility criterias for the implementation on a commercial scale of the DST process in Chile.
About ENAMI, a Chilean state-owned company
ENAMI’s mission is to promote the small and medium size private mining sector in Chile, by supplying technical, financial, metallurgical, production and trading services to small and medium size miners. ENAMI’s assets include one smelter, five processing plants and a network of technical support and facilities. ENAMI purchases ore and concentrate from producers in various purchasing agencies located throughout Chile.
About Dundee Sustainable Technologies, a company controlled by Dundee Corporation
DST is engaged in the development of technologies for the treatment of refractory ores containing sulfides and arsenic. DST has developed proprietary hydrometallurgical processes, and owns the related patents, for the extraction of precious and base metals from ores, concentrates and tailings, which cannot be extracted with conventional processes because of metallurgical issues or environmental considerations.
DST’s patented approach provides a cyanide-free process to allow the exploitation of gold and other deposits that would otherwise face metallurgical issues with conventional methods. The primary benefits of the innovative technology are shorter processing times, a closed-loop operation eliminating the need for costly tailings pond, reduced environmental footprint related to inert and stable characteristics of the tailings, and lesser emissions due to lower energy consumption.
The process developed by DST is a recognized “green technology” for which it was awarded a $5.7 million grant towards the construction and operation of a $25 million demonstration plant. With a capacity of 15 tonnes per day of concentrate, the demonstration plant will serve as a proof of concept for the chlorination extraction technology on an industrial scale and under continuous operating conditions.
DST has tested several different gold deposits, both oxide and sulfide ores at the lab level and at its pilot plant. These tests have, consistently achieved gold recoveries in excess of 90{92d3d6fd85a76c012ea375328005e518e768e12ace6b1722b71965c2a02ea7ce}, using chlorination instead of cyanide.
Dundee Sustainable Technologies Inc.: Patent Notice of Allowance for Collection of Gold Over Silica
Dundee Sustainable Technologies Inc. (“DST” or the “Corporation”) (DST:CSE) 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.
About Dundee Sustainable Technologies, a company controlled by Dundee Corporation
DST is engaged in the development of technologies for the treatment of refractory ores containing sulfides and arsenic. DST has developed proprietary hydrometallurgical processes, and owns the related patents, for the extraction of precious and base metals from ores, concentrates and tailings, which cannot be extracted with conventional processes because of metallurgical issues or environmental considerations.
DST’s patented approach provides a cyanide-free process to allow the exploitation of gold and other deposits that would otherwise face metallurgical issues with conventional methods. The primary benefits of the innovative technology are shorter processing times, a closed-loop operation eliminating the need for costly tailings pond, reduced environmental footprint related to inert and stable characteristics of the tailings, and lesser emissions due to lower energy consumption.
The process developed by DST is a recognized “green technology” for which it was awarded a $5.7 million grant towards the construction and operation of a $25 million demonstration plant. With a capacity of 15 tonnes per day of concentrate, the demonstration plant will serve as a proof of concept for the chlorination extraction technology on an industrial scale and under continuous operating conditions.
DST has tested several different gold deposits, both oxide and sulfide ores at the lab level and at its pilot plant. These tests have, consistently achieved gold recoveries in excess of 90{92d3d6fd85a76c012ea375328005e518e768e12ace6b1722b71965c2a02ea7ce}, using chlorination instead of cyanide.
Dundee Sustainable warrant exercise raises $5-million
Dundee Sustainable Technologies Announces Exercise of Warrants for Proceeds of $5 Million
Dundee Sustainable Technologies Inc. (“DST”) (CSE:DST) is pleased to announce that all of the 50,000,000 warrants (the “Warrants”) held by Dundee Corporation have been exercised for an equal number of Subordinate Voting Shares (the “Shares”) at a price of $0.10 per Warrant, for aggregate proceeds to the Corporation of $5,000,000. The Corporation currently has no further warrants outstanding.
“The exercise of these Warrants, the recent $5 million financing through Investissement Quebec (press release of May 15, 2015) and the $900,000 financial contribution from Canada Economic Development announced yesterday represent a strong confidence in the Corporation” stated John Mercer, President and CEO of the Corporation.
As a result of the exercise of the Warrants, Dundee Corporation now holds a 66{92d3d6fd85a76c012ea375328005e518e768e12ace6b1722b71965c2a02ea7ce} equity interest and an 85{92d3d6fd85a76c012ea375328005e518e768e12ace6b1722b71965c2a02ea7ce} voting interest in the Corporation.
About Dundee Sustainable Technologies, a company controlled by Dundee Corporation
DST is engaged in the development of technologies for the treatment of refractory ores containing sulfides and arsenic. DST has developed proprietary hydrometallurgical processes, and owns the related patents, for the extraction of precious and base metals from ores, concentrates and tailings, which cannot be extracted with conventional processes because of metallurgical issues or environmental considerations.
DST’s patented approach provides a cyanide-free process to allow the exploitation of gold and other deposits that would otherwise face metallurgical issues with conventional methods. The primary benefits of the innovative technology are shorter processing times, a closed-loop operation eliminating the need for costly tailings pond, reduced environmental footprint related to inert and stable characteristics of the tailings, and lesser emissions due to lower energy consumption.
The process developed by DST is a recognized “green technology” for which it was awarded a $5.7 million grant towards the construction and operation of a $25 million demonstration plant. With a capacity of 15 tonnes per day of concentrate, the demonstration plant will serve as a proof of concept for the chlorination extraction technology on an industrial scale and under continuous operating conditions.
DST has tested several different gold deposits, both oxide and sulfide ores at the lab level and at its pilot plant. These tests have, consistently achieved gold recoveries in excess of 90{92d3d6fd85a76c012ea375328005e518e768e12ace6b1722b71965c2a02ea7ce}, using chlorination instead of cyanide.
Dundee Sustainable Technologies Inc. (DST:CSE) establishes technological showcase
Dundee to complete project in Thetford Mines to commercialize its technological innovations
July 7, 2015 – Montreal, Quebec – Canada Economic Development for Quebec Regions (CED)
The Honourable Christian Paradis, Member of Parliament for Mégantic—L’Érable and Minister of International Development and La Francophonie, on behalf of the Honourable Denis Lebel, Minister of Infrastructure, Communities and Intergovernmental Affairs and Minister of the Economic Development Agency of Canada for the Regions of Quebec, today announced funding for Dundee Sustainable Technologies (DST) to intensify its business development and commercialize its innovative processes and technologies resulting from R&D.
The assistance announced today is being provided in the form of a $900,000 repayable contribution through the CED Quebec Economic Development Program’s Canadian Economic Diversification Initiative for Communities Reliant on Chrysotile.
Quick facts
- Founded in 1997, Dundee Sustainable Technologies develops and commercializes processes and technologies with applications in the mining sector.
- DST’s base and precious metal extraction technology, which helps the global industry comply with environmental regulations, is the outcome of 15 years of major investment in R&D.
- The project aims to complete an industrial-scale demonstration plant so as to make DST’s technology known and facilitate the sale of licences.
- CED’s contribution will permit the conversion of a modular ore concentrator, equipment that helps substantially reduce the volume of unwanted, valueless minerals which accompany the main material being mined.
Quote
“By supporting Dundee Sustainable Technologies, our government is showing once again that it is committed to promoting business development and encouraging enterprises to invest and seek out new markets, while at the same time giving new impetus to our economic growth and job creation objectives.”
Christian Paradis, Member of Parliament for Mégantic—L’Érable and Minister of International Development and La Francophonie
View the original article at –> http://news.gc.ca/web/article-en.do?nid=996569&tp=1
For more information on Dundee Sustainable Technologies visit their website –> http://www.dundeetechnologies.com/
DUNDEE SUSTAINABLE TECHNOLOGIES INC. DEVELOPMENT IN FERTILIZER BUSINESS
MONTREAL, QUEBEC–(Marketwired – July 14, 2014) – Dundee Sustainable Technologies Inc. (“DST” or the “Corporation”) (CSE:DST), the developer and owner of proprietary technologies to serve the natural resource sector with environmentally friendly procedures, is pleased to announce its commitment in the fertilizer business.
DST has obtained patents for the production of sulfate based fertilizers. These processes are providing a new way to the industry of producing potassium sulfate (“SOP” or K2S04) and potassium magnesium sulfate (“SOPM” or K2SO4.2MgSO4). Both products are accompanied by the production of salable hydrochloric acid as a by-product.
Sulfate based fertilisers are applied at sowing time, where ions are adsorbed in the soil and remain available and protected against leaching. The growing need to do more with less, and the sulfur deficiency in particular crops have led to an increase use of sulfate based fertilisers, while excess use of chloride based fertilisers (potassium chloride or “potash”) reduces nutrient uptake and yield quantities, water soluble sulfate fertilisers such as SOP and SOPM are the most effective for growing crops.
The growing market for sulfate based fertilisers along with depleting natural sources of chloride-free potassium creates a great opportunity for DST to develop its patented processes.
DST has analyzed a project to build a plant for the production of SOP using potash and sulfuric acid. Moreover, DST has received interest from a North American distributor that is ready to market the production of 50,000 tonnes per year of SOPM and could also be interested in SOP.
Market
The current market conditions and specific demands from the fertilizer market are opening a window of opportunities to launch projects that would lead to the construction of fertilizer plants. DST’s technology allows for SOP and SOPM to be produced below current market price with profit margins preliminary estimated at $410 per tonne for SOP and $225 per tonne for SOPM.
The National Research Council of Canada granted DST a $50,000 subsidy for the assessment of its fertilizer technology.
About Dundee Sustainable Technologies, a company controlled by Dundee Corporation
The cyanide and mercury free gold extraction process developed by DST, has been recognized as a “green technology” for which DST has been awarded $5,700,000 in grants to date for a demonstration plant, presently under construction in Thetford Mines Quebec 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. The plant is scheduled to go into operation in mid-January 2015.
Over the last ten years DST has tested over 50 different gold deposits, both oxide and sulfide ores at the lab level and at its pilot plant. These tests have, consistently achieved gold recoveries in excess of 90{92d3d6fd85a76c012ea375328005e518e768e12ace6b1722b71965c2a02ea7ce}, using chlorination instead of cyanide. In addition, the tailings from the process are inert from toxic substances and as result meet environmental norms. An engineering study completed within the last 12 months supports DST’s claim of having operated a pilot plant showing a gold extraction yield higher than 90{92d3d6fd85a76c012ea375328005e518e768e12ace6b1722b71965c2a02ea7ce} using a closed-circuit chlorination process.
FORWARD LOOKING STATEMENTS: This press release contains forward-looking statements that address future events and conditions, which are subject to various risks and uncertainties. Actual results could differ materially from those anticipated in such forward- looking statements as a result of numerous factors, some of which may be beyond the Corporation’s control. These factors include: results of exploration activities, general market and industry conditions, and other risks disclosed in the Corporation’s filings with Canadian Securities Regulators.
Forward-looking statements are based on the expectations and opinions of the Corporation’s management on the date the statements are made. The assumptions used in the preparation of such statements, although considered reasonable at the time of preparation, may prove to be imprecise and, as such, undue reliance should not be placed on forward-looking statements. The Corporation expressly disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise, except as required by applicable law. Depending on exploration results and available financing, the Corporation may at any point modify its work program.
The Canadian Securities Exchange has in no way passed upon the merits of the proposed transaction and has neither approved nor disapproved the contents of this press release.
Pierre Gauthier
President and CEO
(514) 866-6193
(514) 866-6001 # 244
- Published in Mining