Gold flotation is often overlooked as a processing option as the precious metal is viewed as being associated with the sulphide particles present in the ore, even when a proportion of the gold is free. Gold does float readily, however, and the free gold can be selectively floated away from an ore containing sulphides.
grade copper gold ores from open pit and underground sources in two parallel processing trains. The copper flotation circuits upgrade copper content by a factor of 80 160 times from feed to a saleable copper concentrate containing approximately 50% of the contained gold in feed (remaining gold is recovered
Gold Flotation Production Line. Process Introduction. The flotation meth od is a widel y used technique for the recovery of gold from gold containing copper ores, base metal ores, copper nickel ores, platinum group ores and many other ores where other processes are not applicable. Flotation is also used for the removal of interfering impurities before hydrometallurgical treatment, for upgrading of low sulfide and refractory ores for further treatment.
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Copper Sulfide Flotation Circuit. The pulp from the Conditioner is treated in a 10 cell Sub A Flotation Machine and a 4 cell Sub A Flotation machine. Sometimes conditioners are not provided; however, their use insures that reagents are thoroughly mixed into the pulp ahead of flotation.
Run of mine ore is transported to a single 54 inch primary crusher via 220 tonne haul trucks. The ore ball mill bond work index ranges from 8.5 to 12.5 kW hr/tonne. Stockpiled, crushed ore is fed to a 32 x 15 SAG mill at a rate of about 44,000 metric tons per day.
Today, flotation is commonly used in the processing of primary coppergold ores to produce a copper concentrate containing gold as a co product, where the gold is recovered as a byproduct of copper smelting and refining . The gold is usually discrete and either free, associated with copper sulfides or associated with iron sulfide minerals.
The powdered product of grinding the ore is fed into a series of tanks called flotation cells which are filled with a solution containing various oils capable of forming a froth. Air is pumped into each cell, the solution being agitated to bring froth of bubbles to the surface.
Metallurgical ContentA Copper Flotation FlowsheetCOPPER MININGCRUSHING COPPER ORECOPPER ORE STORAGEGRINDING COPPER ORECOPPER FLOTATION CIRCUITCOPPER THICKENING AND FILTERINGPROCESS CONTROLSCopper Flotation Process SummaryFlotation of Copper Ores Although basic porphyry copper flotation and metallurgy has remained virtually the same for many years, the processing equipment as well as design of ...