Froth Flotation (Sulphide & Oxide)

Froth Flotation (Sulphide & Oxide)

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Copper cells calculation (2 replies)

Y
Yaseen Ahmad
4 months ago
Yaseen Ahmad 4 months ago

a copper ore (calcopirit main mineral) is working in 500 tons/hour capacity 3 shifts. the system consists of rough flotation and cleaning flotation. rough flotation gain efficiency 85%

how many cells are required in rough flotation ( cell volume is 5 m3 )  

David
4 months ago
David 4 months ago
J
Jorge
4 months ago
Jorge 4 months ago

In order to determine the flotation required to operate your rougher flotation circuit is necessary to perform a testing program to provide some key information. It is important to determine the optimum flotation time. The flotation time selected in the best rougher test will be scaled by a factor (e.g. 2.2, 2.5). The typical rougher retention time at industrial scale ranges from 24 to 29 minutes. More time, more cells and vice versa.  Other data is the percent solids, usually 33% w/w solids, but it could be higher (e.g. 40% w/w solids). The particle size is important to evaluate and select an appropriate percent solids. The specific gravity should be determined in the lab. It is important to study several samples to know the variability. Once determined the key parameters, you can calculate the number of cells. 

The estimated copper recovery will be determined in the lab. One more time, it is important to study several samples to estimate the variability. 

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