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Replacement of Mercury in Artisanal Gold Ore Processing

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Bruce A. Cosgrove, M.Sc., (Solution Chemistry)

Published on

October 28, 2023

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An ESG driven climate action initiative with plans to convert a whole ore mercury amalgamation Chilean processing center (Chilean Center) to the world’s 1st sustainable precious metals leaching center replacing the use of mercury & hard to handle cyanide salts as lixiviants with manipueira.

Manipueira, a plant-based extract solution from the cyanogenic bitter cassava plant contains aqueous free cyanide proven & scientifically documented to leach more gold from ore than by using mercur & gold from toxic tailings wastes faster & less costly than by using cyanide salts. 

Initial plans are to raise & provide the capital to the artisanal miner to convert a whole ore mercury amalgamation chancha barrel processing center (Chancha Center) in Ecuador’s Portovelo-Zaruma mining district to demonstrate & validate our claims of 2 – 3 times more gold recovery sustainably & promote the adoption of our climate action initiative through joint ventures.

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