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May 14, 2026Scientific ReportsOpen Access

Selective flotation of chalcopyrite over pyrite in a low-grade copper sulfide ore using selective collectors and non-cyanide depressants

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Authors

FSFaraz SoltaniHDHossna DarabiFKFarshid Khodabandehlou

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Overview

Randomized trial demonstrates improved selective flotation outcomes in low-grade copper ores, suggesting environmentally friendly processing alternatives.

Key Points

  • This research aims to improve the selective flotation of chalcopyrite over pyrite in low-grade copper ores using non-cyanide depressants and selective collectors.
  • Applied non-cyanide depressants including lime, sodium sulfite, sodium lignosulfonate, and dextrin.
  • Used selective collectors C-4132, PAX, Z11, and Flomin 7240 in flotation processes.
  • Focused on optimizing reagent regimes for enhanced recovery of chalcopyrite.
  • Produced a concentrate with a grade of 11.18% Cu and a recovery of 76.41% using 67 g/t of C-4132, 100 g/t of sodium sulfite, and 5 kg/t of lime.
  • Demonstrated the effectiveness of a selected reagent regime in enhancing flotation of chalcopyrite over pyrite.
  • Provided insights into sustainable flotation practices for low-grade copper ores.

Cite This Study

Soltani et al. (2026) studied this question.

synapsesocial.com/papers/6a0565f4a550a87e60a1e0adhttps://doi.org/10.1038/s41598-026-49274-9
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Selective Kinetic Separation of Chalcopyrite from Complex Iron Sulfide Gangue: Synergistic Impacts of Pulp pH, Green Depressants, and Sulfhydryl Collectors2026
  2. 2Sulfonated Dextrin-Derived Efficient Flotation Separation of Chalcopyrite and Pyrite Under Low Alkalinity2026
  3. 3Copper Recovery from Copper Sulfide Ore by Combined Method of Collectorless Flotation and Additive Roasting Followed by Acid Leaching2025 · 2 citations
  4. 4Selective Flotation of Chalcopyrite from Pyrite Using 1,3,4-Thiadiazole-2-Thiol Collectors Under Low-Alkalinity Conditions2026
  5. 5Boosting copper sulfide ore flotation efficiency through a substantial replacement of xanthate collectors with organosolv lignin particles2026