Research on Technology of Gold Extraction from a Gold Concentrate of High-arsenic and High-sulphur

A combined technological flowsheet of two-stage roasting and atmospheric catalytic oxidation for gold extraction from the gold concentrate of high-arsenic and high-sulphur was presented.The process has the characteristics of little investment,adaptable raw materials,low production costs,simple operation and high gold recovery.This can make resources fully be utilized and the economical benefit is remarkable.