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:: Mining the Motherboards
Vancouver-based EnviroLeach Technologies is building a processing plant that it says will be an environmentally friendly solution to recover precious metals from electronic waste.
Over the last two years, the company has developed a water-based extraction process that it says will serve as an alternative to acid- and cyanide-based leaching.
According to the company, the ingredients in the patent-pending solution are all approved by the U.S. Food and Drug Administration as medicines, food additives and nutritional supplements.
In June the company announced it teamed up with Mineworx Technologies, a mine process technology company, to build the components of the modular plant in Coquitlam, B.C. According to EnviroLeach, it will process some ten tonnes of e-waste per day and cost an estimated $5.15 million.
The company will focus on what CEO Duane Nelson calls “high-grade e-waste” like circuit boards and memory cards stripped from computers and cellphones.
EnviroLeach claims the plant, which is expected to be commissioned by the end of the year, will be the largest chemistry-based e-waste processing facility in North America. According to Nelson, some plants use aqua regia, which uses nitric and hydrochloric acid to dissolve gold and creates poisonous gasses, and do not operate on the same scale.
Read the full article at: magazine.cim.org/en/news/2017/mining-the-motherboards/
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