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June 27, 2026Mineral Processing and Extractive Metallurgy Review

Selective Flotation of Chalcopyrite from Pyrite Using 1,3,4-Thiadiazole-2-Thiol Collectors Under Low-Alkalinity Conditions

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Authors

CWChuanli WangZFZhitao FengRZRenji Zheng

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Overview

Randomized trial demonstrates efficient chalcopyrite-pyrite separation in copper-sulfide ores, highlighting environmental benefits.

Key Points

  • This research aims to develop novel collectors for effective chalcopyrite and pyrite separation under low-alkalinity conditions.
  • Designed novel 1,3,4-thiadiazole-2-thiol collectors (CSC-5, CSC-6, CSC-7) with various hydrophobic chains.
  • Conducted flotation tests on single-mineral and mixed-mineral ores.
  • Performed surface characterization using Atomic Force Microscopy and contact angle measurements.
  • Achieved chalcopyrite recoveries of 89.5–98.3% and suppressed pyrite recovery to 37.8–38.9%.
  • Outperformed conventional collectors (EX, ADD, Z-200) in selectivity.
  • DFT calculations revealed strong chelation of CSC-7 with chalcopyrite iron sites and weak interaction with pyrite.

Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/6a3f6922aea7db3c1953ffb4https://doi.org/10.1080/08827508.2026.2688857
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