Anglo American announced that their Coarse Particle Flotation (CPF) plant will be commissioned in October of this year. This will maximize copper recovery from tailings.
The CPF plant represents an investment of over US$200 million and has a processing capacity of 127,500 tons per day.
During PERUMIN 36, Justo Enríquez, the company's process manager, explained that the loss of valuable copper material usually occurs in the coarse particles because normal technology does not recover it. "It goes to the tailings and is lost," he said.
However, due to its design, the CPF plant will be able to recover up to 4% for secondary material and more than 2.4% for primary material.
Enriquez emphasized that this is the first plant of its kind in the country and, due to its characteristics and dimensions, the largest in the mining world to date. This will bring multiple benefits to the mining unit.
"The integration of this new process will enable us to maximize mineral recovery, make the operation more efficient, and also increase production," Enríquez stated.
He added that the operation of the plant will not require a significant amount of water since it will use recycled and recirculated internal liquids, already used in their operations.
On the other hand, the plant will be staffed by professionals from the Moquegua region, who have been trained to operate this new and unique system in the country.
CPF uses a technology called HydroFloat. By injecting water and air from the bottom of the container, finer particles are floated to the top and then sent to the tailings pond. Coarse particles are captured and sent for regrinding in vertical mills called Vertimills before being returned to the conventional flotation circuit.