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Non-toxic leaching formula for e-scrap
VATIS UPDATE Part
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Mineworx, Canada, has revealed that its HM X leach formula removes gold, palladium, platinum, silver and other metals from circuit boards and is safer than cyanide or other leaching formulas. This method can effectively extract precious metals from e-scrap without using toxic chemicals “You could essentially drink this,” said Duane Nelson, at Mineworx. The company has filed for a patent from the U.S. Patent and Trademark Office for the technology. The formula can also be applied to extracting metals from ores, concentrates and tailings.

“The Mineworx formula, made of food-grade, organic ingredients, was recently tested on e-scrap samples. HM X-leach accumulated 2,600 parts per million of gold in the solution in less than an hour of soaking. It matches cyanide’s recovery rate of 97 percent over the course of about four hours. While some of the formula is consumed in the process, the liquid is reusable. Because the ingredients in HM X-leach are more expensive than cyanide, the formula’s recyclability is key,” said Nelson.