Evaluación de dos procesos de extracción de oro diferentes al de cianuración que cumplan las normativas ambientales establecidas en Ecuador.

Abstract

At present, in the extractive metallurgy, physical chemical methods of recovery of gold are being used, friendly to the environment, leaving aside the application of Cyanide, which due to its chemical composition causes a high environmental impact when discarded as tailings, despite Be treated previously. New metallurgical extraction techniques appear, but due to the percentage of recovery it is not possible to reduce the use of cyanide. That is why mining companies established in the Portovelo canton, province of El Oro are betting on new alternatives for the recovery of valuable metal, in this case mostly gold, which are allowed in the environmental regulations in force in Ecuador. The present project is based on the theoretical analysis of new Gold extraction techniques such as Goldmax and Tiourea, and on the selection of at least two that are friendly to the environment and their recovery percentage is profitable, with the aim of giving compliance with the provisions of the plan of good living.