Oxidation leaching agent for low-grade oxidized gold ore and application process thereof

The present invention discloses an oxidation leaching agent for low-grade oxidized gold ore and application process thereof. The method comprises the following step: firstly, grinding the ore, mixing the ground ore pulp, adding an oxidation leaching agent to carry out cyanidation leaching, slightly washing the ore pulp formed after cyanidation leaching, and filtering in a filter, wherein the filtrate is a pregnant solution, and enters a filter bottle for collection for later use, and a filter cake is leaching residue; and wrapping the pretreated coconut shell carbon with gauze, and placing the coconut shell carbon in the pregnant solution for carbon-in-pulp adsorption to obtain gold-loaded carbon and a barren solution. The oxidizing leaching agent, namely ammonium citrate and potassium sodium tartrate are added during the process of cyanidation leaching, the ammonium citrate and potassium sodium tartrate have the functions of dispersion, chelation and oxidation, can weaken the influence of impurities in the g