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Arsenic Sequestration by Vitrification Technology.
The occurrence of arsenic bearing minerals is increasing in base and precious metal deposits. Materials with elevated arsenic contents are difficult to process without the associated environmental risks. Due to limited alternatives, the arsenic is volatilized or left in tailings exposed to lixiviation. Very few facilities in the world are capable of treating material containing high levels of arsenic. The Company has developed in its portfolio of technologies a patented process for the capture and stabilisation of the arsenic from mining and processing operations.
The Company s approach is to form a very stable glass and vitrify the arsenic content. The cost of sequestrating the arsenic using the vitrification technology is in the order of ten times lower than conventional approaches and produces a stable, insoluble glass residue.
(*) Company; Patent & Web-Site Available on Request.
UpDate: 2018. 01.25.




Gold Cyanide-Free Extraction Process Technology.
The mining industry is facing growing pressure to improve its current practices and to develop environmentally-friendly alternative processes to reduce environmental liabilities. Several mining jurisdictions around the world have banned or restricted the use of cyanide. As a consequence, mining companies are struggling to obtain the permits for their projects due to increasing environmental and social concerns related to the use of cyanide.
The Company s patented process is providing an alternative to the conventional cyanidation process for precious metal extraction.
The Company has developed a novel process which uses chlorination in order to extract precious metals from refractory minerals. The Company s process operates in a closed loop circuit, which implies that no liquid effluents are generated, eliminating the need for costly tailings ponds. The chemistry and process design allows precious metal deposits containing base metals to be treated viably. The tailings from the process are inert from toxic substances, sulphide depleted and not acid generating, and as a result, meet environmental norms. The efficiency of the process has demonstrated high gold recoveries within a fraction of the time needed for cyanidation to obtain similar results.
(*) Company; Patents & Web-Site Available on Request.
UpDate: 2018. 01.25.



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