Enhancement of galena-potassium ethyl xanthate flotation system by low power ultrasound |
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| Affiliation: | 1. Department of Mining Engineering, Engineering Faculty, Istanbul University-Cerrahpasa, Buyukcekmece, Istanbul 34500, Turkey;2. Department of Robotics and Intelligent Systems, The Institute of the Graduate Studies in Science and Engineering, Turkish-German University, Beykoz, Istanbul 34820, Turkey;1. Department of Earth Resources Engineering, Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan;2. Sumitomo Metal Mining Co., Ltd, 17-5 Isouracho, Niihama, Ehime, Japan;1. School of Minerals Processing & Bioengineering, Central South University, Changsha 410083, China;2. Key Laboratory of Biohydrometallurgy of Ministry of Education, Central South University, Changsha 410083, China;1. Key Laboratory of Solid Waste Treatment and Resource Recycle Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan, PR China;2. School of Chemical Engineering, Sichuan University, Chengdu, Sichuan, PR China;3. School of Resources Processing and Bioengineering, Central South University, Changsha, Hunan, PR China;4. Key Laboratory of Biohydrometallurgy, Ministry of Education, Central South University, Changsha 410083, PR China;1. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, PR China;2. BGRIMM Technology Group, Beijing 100160, PR China;1. Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China;2. School of Chemical Engineering, The University of Queensland, St Lucia 4072, Queensland, Australia |
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| Abstract: | The objective of this study is to investigate the improvement possibilities of the floatability of galena with ultrasonic application in the presence of potassium ethyl xanthate (KEX). For this purpose, micro-flotation experiments were carried out in addition to surface chemistry studies including zeta potential, contact angle, and bubble-particle attachment time measurements at various ultrasonic power levels and conditioning time. The results showed that, the maximum micro-flotation recovery of 77.5% was obtained with 30 W ultrasound power and 2 min conditioning time. In addition, more negative zeta potential values were obtained with ultrasound as well as higher contact angle and lower bubble-particle attachment time, which indicated the increased hydrophobicity of galena with ultrasound. |
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| Keywords: | galena potassium ethyl xanthate flotation ultrasound bubble-particle attachment time |
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