The raw ore had an Au grade of 5.75g/t, a true density of 2.62t/m3 and a bulk density of 1.32t/m3, with gold being the major valuable mineral.
Mineral processing process
The raw ore was washed by vibrating screen; washed ores were sent to the crushing system which adopted two-stage open-circuit process and produced a particle size of -15mm.
Washing stage
One-stage close-circuit grinding and classification was adopted; The grinding products were treated by trash screen; undersize slurry flowed to the thickener.
Grinding stage
Thickener underflow was pumped by slurry pump to the trash screen; gold-bearing carbon was gained through leaching, absorption and carbon extraction; gold slime was produced after high-temperature high-voltage desorption electrolysis system; crude gold ingots were produced after smelting.
Tailings dewatering stage
Leaching tailings were dehydrated with filtrate recycled and dry tailings stacked in the tailings pond.
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