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Novel pyrite depressant at low alkalinity: Selective adsorption mechanism and its application in separation of galena from high-sulfur lead ore
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DOI：10.1016/j.mineng.2026.110740.png)
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Abstract
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• A novel depressant HEDTA-3Na for pyrite under low alkalinity is proposed. • Factors affecting the flotation behavior of pyrite and galena were discussed. • The selective depression mechanism of HEDTA-3Na for pyrite was revealed. • HEDTA-3Na was successfully validated on high-sulfur lead ore under low-alkalinity conditions.
Keywords:
Pyrite
Galena
HEDTA-3Na
Flotation separation
Low alkalinity
Chelating depressant
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