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MEI Online: Environmental Issues: Latest News: February 2nd 2012


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:: PyroGenesis Files for Patent Protection for DROSRITE Plus for the Recovery of Metal from Zinc and Aluminum Dross

PyroGenesis Canada Inc., an environmental solutions company that designs, develops and manufactures plasma waste-to-energy systems and plasma torch products, today announced that it has filed for patent protection for its energy efficient, salt-free recovery of metal from zinc and aluminum dross. Dross is a residue from metallurgical processes that is generated when hot molten metal contacts air.

Current practices often require zinc and aluminum smelters to ship their dross residue to a third party for expensive treatment and metal recovery. PyroGenesis' technology, DROSRITE Plus, treats hot dross right at the smelter, resulting in improved metal recovery and a significant reduction in greenhouse gas generation.

"The pursuit of new market niches for our plasma-based technology is consistent with our strategy to diversify and expand our market opportunities into areas where there is a need for environmentally friendly solutions that can reduce greenhouse gases," said P. Peter Pascali, President and Chief Executive Officer of PyroGenesis. "Our DROSRITE Plus technology has a low capital and operating cost compared to conventional practices, and we believe it has the potential for widespread application in the zinc and aluminum industry."

Dr. Michel Drouet, Chief Scientific Advisor to PyroGenesis, commented, "This leading-edge technology has gone through extensive testing at metallurgical operations in Canada, the United States and Europe. As published in TMS Light Metals, a renowned metallurgical industry publication, the amount of aluminum dross produced in the world represents approximately 5% of the total world aluminum production (1.5 million tons per year). As such, we believe there is significant market potential for DROSRITE Plus. If the aluminum industry used DROSRITE Plus to process the 1.5 million tons per year of its dross "reject", then this could potentially reduce greenhouse gas emissions by more than 750,000 tons per year, which is the equivalent of 200,000 fewer cars on the road. "




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