An activator-frother composition

B - Operations – Transporting – 03 – D

Patent

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Details

B03D 1/018 (2006.01) B03D 1/002 (2006.01) B03D 1/004 (2006.01) B03D 1/02 (2006.01)

Patent

CA 2108071

An activator-frother composition which has good selectivity can be employed as additional reagent for the flotation of minerals of finely divided sulfide type and as sole reagent for the retreatment of flotation tailings. The composition consists of approximately 1% to 10% and preferably 2% to 8% by weight of pine oil, approximately 10% to 30% and preferably 12% to 20% by weight of sodium sulfide (Na2S) in 10% solution, approximately 15% to 36% and preferably 22% to 34% by weight of hydrogen peroxide (H2 0 2) in 50% solution, and approximately 20% to 40% and preferably 25% to 38% by weight of sodium bicarbonate (NaHCo3).

Une composition d'agents activants-moussants possédant une bonne sélectivité peut être utilisée comme réactif additionnel pour la flottation de minéraux de type sulfure finement broyé et comme réactif unique pour le retraitement de rejets de flottation. Cette composition est constituée d'environ 1 à 10 %, préférablement de 2 à 8 %, en poids, d'huile de pin, d'environ 10 à 30 %, préférablement de 12 à 20 %, en poids, de sulfure de sodium (Na2S) en solution à 10 %, d'environ 15 à 36 %, préférablement de 22 à 34 %, en poids, de peroxyde d'hydrogène (H2O2) en solution à 50 %, et d'environ 20 à 40 %, préférablement de 25 à 38 %, en poids, de bicarbonate de sodium (NaHCO3).

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