Method for extracting gold from arsenic-containing mineral through high-pressure oxygen leaching and acidolysis

The invention belongs to the technical field of wet smelting, and particularly relates to a method for extracting gold from arsenic-containing minerals through high-pressure oxygen leaching and acidolysis, which comprises the following steps of: S1, finely grinding arsenic-containing gold minerals, and then carrying out oxygen pressure leaching and filtering to obtain ore pulp; a leaching medium for oxygen pressure leaching is a neutral medium, and the liquid-solid mass ratio is (2-4): 1; s2, oxygen is introduced, the ore pulp is subjected to acidolysis for 2-4 h at the temperature of 50-80 DEG C, and acidolysis residues are obtained; s3, adding an alkaline solution into the acidolysis residues to adjust the pH value to 10-11, adding cyanide, stirring for 30-40 hours, and filtering to obtain a cyanide solution; and feeding the cyanide solution to a gold extraction process. According to the method, the high-pressure oxygen leaching and acidolysis combined technology is adopted, alkali consumption and rapid dec