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The Impact of Nano-Microbubbles on Zinc Oxide Ore Flotation Performance | ||
| Journal of Environment and Sustainable Mining | ||
| دوره 1، شماره 4، اسفند 2025، صفحه 59-71 | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22111/jesm.2025.52010.1025 | ||
| نویسندگان | ||
| Mohammad Omidifar* ؛ Sied Ziaedin Shafaei Tonkaboni | ||
| Faculty of Mining Engineering, University of Tehran, Tehran, Iran. | ||
| چکیده | ||
| The major challenge in zinc oxide ores flotation is the excessive production of fines during comminution, which leads to increased reagent consumption or the loss of zinc minerals. One of the most effective methods for enhancing recovery is the use of nano-microbubbles in the flotation. In this study, the effect of using nano-microbubbles in the flotation of a zinc oxide ore sample with a Zn content of 15.67% was studied with the aim of eliminating the desliming stage. A software-based statistical design of experiments (DOE) was applied to design and statistically analyze the results. The parameters were labeled as: using nano-microbubbles water (A), sodium sulfide concentration as a sulfidant (B), Armac C concentration as a collector (C) and particle size (D). Zinc concentrate recovery was evaluated as the response in the design. Analysis of the results showed that the influence of parameters and their interactions on the response followed the order: B>D>C>BD>BC>CD>A>BCD. Maximum recovery was achieved in the presence of nano-microbubbles, sodium sulfide concentration of 4000 g/t, Armac C concentration of 1000 g/t, and the d80 of the feed particles at 92 m. Under these conditions, a concentrate with Zn grade of 25.89% and 88.81% recovery was obtained and in the absence of both nano-microbubbles and PAX as a promoter, the concentrate grade and recovery were 27.31% and 81.74%, respectively. The results showed that using PAX (200 g/t) led to a lower recovery increase (~1%) compared to using nano-microbubbles (~7%). | ||
| کلیدواژهها | ||
| Sodium sulfide؛ Armac C؛ Particle size؛ PAX؛ DOE | ||
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آمار تعداد مشاهده مقاله: 87 تعداد دریافت فایل اصل مقاله: 45 |
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