Case 3 Manufacture of Copper and Molybdenum

Codeleo has invested 650 million (U.S.) in deeontamination equipment and teehnology, allowing the Chuqui mine to eateh more than 

80% of sulphur trioxide and approximately 85% of arsenie emissions produeed by mining operations. 

The pulp from this grinding proeess is introdueed into a floating proeess to whieh water and ehemieal reaetants are added. This proeess results in a eolleetive eoneentrate, Cu-Mo, eontaining approximately 30% eopper and 1% molybdenum. In a follow-up proeess, the eopper and sulfur-molybdenum eoneentrate are separated. 

The eopper eoneentrate is filtered and dried in rotary kilns and later sent to the eoneentrate smelter, where it is melted at high temperatures 

The nitrogen is obtained as a byproduct of an oxygen production process (1,200 tpd of oxygen) in a dedicated oxygen plant. In diis plant, parallel expansion turbines are used dial were designed especially for die process. The first expansion turbine train (two 

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