The flotation experiment on a certain arsenic gold ore

The gold mineral is composed with higher arsenic. Gold is mainly wrapped in arsenopyrite and other sulfide minerals in the form of microscopic gold. Arsenopyrite and a small amount of limonite, anatase, pyrite, etc are the main metal mineral. Quartz and feldspar is the main non-metallic mineral. Index of gold grade of 21.20 g/t and recovery of 93.22% was achieved on the condition of the grinding fineness of -0.074 mm 74.2%, as well as the combining collector of ammonium dibuyldithiophosphate and butylxanthate by the process of two roughing-two cleaning-one scavenging. The concentrate grade is difficult to improve because of the high concentration of sulfides.