Research Progress on the Three Major Mechanisms and Strengthening Processes of Cyanide Leaching of Gold
At present,cyanide leaching is still the most commonly used method for gold extraction,and the 3 widely recognized mechanisms are Elsner's oxygen theory,Portland's hydrogen peroxide theory,and Ernst's corrosion theory.Starting from the 3 mechanisms of cyanide leaching of gold,the influencing factors of cyanide leaching of gold are analyzed,and the research progress is summarized on strengthening cyanide leaching of gold.Research has shown that ore properties,dissolved oxygen and cyanide concentration,and ore particle size are the main influencing factors of cyanide leaching of gold,and the strengthening processes of cyanide leaching of gold mainly include microcrack strengthening,oxidant strengthening,ore pretreatment,granulation heap leaching,ultrasonic strengthening,heavy metal strengthening,and external physical field strengthening.
cyanide leaching of goldmechanisminfluencing factorsstrengthening processes
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