About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Chemistry and Physics of Interfaces
|
| Presentation Title |
Study on Lower Liquid Entrainment Volume by Rising Bubble in Two Immiscible Liquids |
| Author(s) |
Xiangfeng Cheng, Baojun Zhao, Fuming Zhang, Zhizheng Wang, Gele Qing, Haipeng Xia |
| On-Site Speaker (Planned) |
Xiangfeng Cheng |
| Abstract Scope |
The penetration of gas bubbles through liquid-liquid interfaces plays a critical role in metallurgical processes, particularly in copper smelting, where the copper matte loss in the slag depends on bubble-induced entrainment dynamics. This study quantifies the light phase entrainment volume and even film thickness on the rising bubbles with bubble size and fluid properties, i.e. density, viscosity, interfacial tension. Experiments reveal that entrainment volume of heavier liquid transported by rising bubbles decreases with increasing both upper and lower liquid phase viscosity, heavy liquid density, and interfacial tension. Besides, it was also observed three typical entrainment regimes correspond to different entrainment volume with increasing bubble diameters from 3.16 mm to 7.17 mm. In copper smelting, optimizing bubble size and slag viscosity (0.1–0.5 Pa·s) can minimize matte entrainment in slag, improving metal recovery. The findings provide actionable guidelines for process control, emphasizing viscosity adjustment and bubble dispersion to enhance slag recovery. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Copper / Nickel / Cobalt, Pyrometallurgy, Thin Films and Interfaces |