Affiliation:
1. School of Materials Science and Engineering Anhui University of Science and Technology Huainan China
2. Key Laboratory of Coal Processing and Efficient Utilization, (China University of Mining and Technology) Ministry of Education Xuzhou China
3. State Key Laboratory of Ming Response and Disaster Prevention and Control in Deep Coal Mines Anhui University of Science and Technology Huainan China
4. Huaibei Mining Co., Ltd Huaibei China
Abstract
AbstractBACKGROUNDUnderstanding the effect of ions on collector generation characteristics is crucial for adjusting the oil/water interface and enhancing mineral flotation.METHODSWe conducted a study of the kerosene droplet generation process in the presence of NaCl, MgCl2, and AlCl3 using a high‐speed motion acquisition system.RESULTS AND CONCLUSIONSThe results showed that the generation process of kerosene droplets could be divided into two stages, droplet expansion and column contraction, according to variations of the droplet width. With the increasing capillary inner diameter, the generation time of the kerosene droplet increased, while the w/h value (column width/column height) of the kerosene column decreased. When the w/h value decreased to 0, the droplet column ruptured, and the droplet separated from the capillary. As the ion valence increased, the equivalent diameter (d) of the kerosene droplet increased due to the ionic hydration and followed the order dAl3+ > dMg2+ > dNa+. Furthermore, as the ion concentration increased, the equivalent diameter increased with the same capillary inner diameter, and the w/h value decreased. A model of the kerosene column height and capillary inner diameter (R) was established to predict the characteristics of the generated kerosene droplet. © 2023 Society of Chemical Industry (SCI).
Funder
Natural Science Foundation of Anhui Province
National Natural Science Foundation of China
China Postdoctoral Science Foundation
Subject
Inorganic Chemistry,Organic Chemistry,Pollution,Waste Management and Disposal,Fuel Technology,Renewable Energy, Sustainability and the Environment,General Chemical Engineering,Biotechnology