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The document discusses using nitrogen instead of air in the flotation process used to separate molybdenite from copper ore at the Sarcheshmeh copper complex in Iran. Sodium sulphide is used as a depressant to separate the molybdenite, but it is unstable and oxidizes when using air, increasing costs. After using nitrogen for 21 months, the consumption of sodium sulphide decreased from an average of 17.7 kg/t to 14.2 kg/t, reducing costs. However, the reduction was lower than expected due to issues with the t

Author

danisa

Language

EN