Effect of contact angle,surface tension and zeta potential on oil agglomeration of celestite |
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| Affiliation: | 1. Key Laboratory of Colloid & Interface Chemistry of the Education Ministry of China, Shandong University, Jinan 250100, PR China;2. State Key Laboratory of Microbial Technology of China, Shandong University, Jinan 250100, PR China;1. Department of Physics, The Islamia University of Bahawalpur, Pakistan;2. Department of Physics, GC University Faisalabad, Pakistan;3. Department of Material Science & Engineering, University of California Los Angeles, USA;1. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Laser Spectroscopy, Shanxi University, Taiyuan, Shanxi, 030006, China;2. Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi, 030006, China;2. Division of Energy & Environmental Technology, KIST School, Korea University of Science and Technology, Seoul, 02792, Republic of Korea |
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| Abstract: | The influences of contact angle, surface tension and zeta potential on oil agglomeration recovery of celestite mineral have been investigated in the present work. Therefore, celestite mineral in methanol–water suspension was agglomerated by the use of oil (kerosene) in the presence of sodium oleate as a surfactant. The zeta potential values of celestite surfaces were measured depending on pH and sodium oleate concentration. The zeta potential values of celestite surfaces became negative even more owing to the sodium oleate adsorption. However, this phenomenon did not affect the oil agglomeration recovery at all. It was found that both increasing contact angle and surface tension raised the oil agglomeration recovery of celestite mineral. Eventually, the agglomeration degree of celestite mineral in the suspension was not lower than a particular surface tension value corresponding to the critical solution surface tension for oil agglomeration (γc-a). The γc-a values were slightly greater than the critical surface tension of wetting (γc) values. |
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| Keywords: | Celestite Oil agglomeration Contact angle Surface tension Zeta potential |
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