Impact of Closed Flowsheet Structure on Oxidised Copper Ores in Huidong

Flotation experimental research is carried out on a certain oxidised copper ores in Huidong, Sichuan province. The ores belongs to the typical oxidised ores. For the characteristics of the mine and the scene of the test requirements, five different flowsheets were test. Under the proper process conditions, the good technical indexes were obtained in all flowsheets. But the the fourth flotation flowsheet was choosed. The principle process of two roughing, one scavenging and two cleaning were used in flotation process. Both the scavenging foam and tailing of first cleaning are returned to the first roughing work and tailing of second cleaning is returned to first cleaning work in closed circuit.