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<p>It is widely recognized that using a combination of collectors can have a synergistic effect on flotation recovery. This research examines the impact of cationic and anionic collectors, as well as a mixture of both, on the flotation separation of chalcopyrite from pyrite. The initial flotation tests determined the optimal dosage and type of reagents. The results showed that using sodium silicate as a dispersant, sodium sulfite as a depressant, dithiophosphate (TC15) as the main collector, sodium isopropyl xanthate (SIPX) as a collector, and methyl isobutyl carbinol (MIBC) as a frother, with concentrations of 4, 2, 18, 44, and 48&#xa0;g/t, respectively, at a pH of 12, resulted in a copper recovery of 87.1% with a grade of 3.79%. Through a series of experiments, the recovery rates of copper sulfide were compared using traditional collectors, nanocollectors, and a combination of both. The use of nanocollectors is a new method that not only reduces costs and is more environmentally friendly, but also effectively enhances flotation recovery. A mixture of sodium dodecyl sulfate (SDS) as an anionic collector and coco alkyl amine acetate (Armac C) as a cationic collector resulted in a recovery rate of 81.4% with a copper grade of 2.03%, which was higher than using SDS alone due to the synergistic effect. In addition, the use of graphene oxide (GO) and reduced graphene oxide (rGO) as nanocollectors, as well as a mixture of rGO with SIPX, was investigated. The results showed that using rGO in combination with SIPX achieved a copper recovery rate of 89.3%, which was the highest among all experiments. Comparing the quality of the obtained products revealed that the nanocollector is more selective than the anionic collector.</p> Graphical Abstract <p></p>

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Investigating the Synergy Effect of Using Combined Collector and Nanocollector on Recovery of Copper Sulfide

  • 期刊论文

  • 发表日期：

    2025年1月13日

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  • Amir Hosein Sepehrnia,
  • Mahdi Gharabaghi,
  • Hadi Abdollahi,
  • Rashid Katal

摘要

It is widely recognized that using a combination of collectors can have a synergistic effect on flotation recovery. This research examines the impact of cationic and anionic collectors, as well as a mixture of both, on the flotation separation of chalcopyrite from pyrite. The initial flotation tests determined the optimal dosage and type of reagents. The results showed that using sodium silicate as a dispersant, sodium sulfite as a depressant, dithiophosphate (TC15) as the main collector, sodium isopropyl xanthate (SIPX) as a collector, and methyl isobutyl carbinol (MIBC) as a frother, with concentrations of 4, 2, 18, 44, and 48 g/t, respectively, at a pH of 12, resulted in a copper recovery of 87.1% with a grade of 3.79%. Through a series of experiments, the recovery rates of copper sulfide were compared using traditional collectors, nanocollectors, and a combination of both. The use of nanocollectors is a new method that not only reduces costs and is more environmentally friendly, but also effectively enhances flotation recovery. A mixture of sodium dodecyl sulfate (SDS) as an anionic collector and coco alkyl amine acetate (Armac C) as a cationic collector resulted in a recovery rate of 81.4% with a copper grade of 2.03%, which was higher than using SDS alone due to the synergistic effect. In addition, the use of graphene oxide (GO) and reduced graphene oxide (rGO) as nanocollectors, as well as a mixture of rGO with SIPX, was investigated. The results showed that using rGO in combination with SIPX achieved a copper recovery rate of 89.3%, which was the highest among all experiments. Comparing the quality of the obtained products revealed that the nanocollector is more selective than the anionic collector.

Graphical Abstract