Metso Mill Grates Help Boost Production at Codelco

Metso recently reported that Codelco’s El Teniente operation is the first mining company to use the latest version of Metso’s Poly-Met discharge grates for SAG mills. According to the company, implementation of this product was instrumental in enabling El Teniente to set a mine record for commercial production in 2015, with substantially lower operating costs.

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Chilean Study to Focus on Cleaner Zinc Production

Roasting of ore concentrates, the traditional method used to produce zinc, generates high levels of pollution, particularly from the release of sulphur in the form of SO2. A team of researchers from Chile’s Universidad Católica del Norte (UCN) is currently pursuing a goal of reducing the environmental contamination resulting from the process. The university, along with Innova-Corfo and VIACHA—a Bolivian mineral distributor company—have committed 242 million pesos to advance the project.

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Gain Improved Tank Slurry Agitation via Swirl Flow Technology

Large-scale tanks with working volumes in the range of 1,000-5,000 m3 per tank are used in the minerals processing industry to provide feed storage and various continuous hydrometallurgical processes such as leaching (digestion), precipitation, adsorption, oxidation, tailings washing and neutralization. Typically, single or multiple impellers with vertical baffles inside these tanks are used to provide solids suspension and mixing. In some applications, draft tube agitator or air-lifting pipes are used.

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