An immersion gold agent and a gold extraction method based on the immersion gold agent

Abstract

This invention discloses a gold leaching agent and a gold extraction method based on the gold leaching agent. The gold leaching agent comprises the following components in the following molar amounts: 0.5-2 parts of thiosulfate, 0.004-0.009 parts of copper salt, 1-2 parts of ammonia, 0.01-0.02 parts of phosphate, and 0.002-0.01 parts of zwitterionic surfactant. This application uses phosphate and zwitterionic surfactant to synergistically suppress side reactions generated during the gold leaching process, reduce the oxidative decomposition of thiosulfate, which is beneficial to reduce the reagent consumption of thiosulfate and improve the gold leaching rate.

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