Experimental research of a refractory gold ore with high sulfur and arsenic content
In response to the problem of low gold recovery caused by high sulfur and arsenic content in a gold ore,which is prone to sludging,an experimental study was conducted using a staged grinding,staged flotation-non-cyanide leaching process for flotation tailings.The research results showed that under the conditions of a first-stage grinding fineness of-0.074 mm accounting for 75.6％and a second-stage grinding fineness of-0.043 mm accounting for 78.1％,with the addition of 1 650 g/t acidified water glass,350 g/t copper sulfate,(240+96)g/t of butyl xanthate+ammonium dibutyl dithiophosphate,and 160 g/t terpilenol,a flotation process was tested,and the flotation tailings were subjected to non-cyanide leaching using leaching agent.The final recovery indicators obtained were an 84.40％gold recovery rate for flotation concentrate,a 10.52％gold leaching rate for flotation tailings,and a total gold recovery rate of 94.92％.The research findings have important guiding significance for the development of similar gold resources.
万方数据
维普
