| 2019 | Malayoglu, U., Ozkan, S.G.: Effects of ultrasound on desliming prior to feldspar flotation. In: Minerals, 2019, 784-784 |
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| 2017 | Ozkan, S.G.: Further investigations on simultaneous ultrasonic coal flotation. In: Minerals, 2017, 177-177 |
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| 2012 | M. Faruk Eskibalci, Safak G. Özkan: An investigation of effect of microwave energy on electrostatic separation of colemanite and ulexite. In: Minerals Engineering, 2012, 90-97 |
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| 2012 | Safak G. Özkan: Effects of simultaneous ultrasonic treatment on flotation of hard coal slimes. In: Fuel, 2012, 576-580 |
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| 2012 | Safak G. Özkan, Can Gungoren: Enhancement of colemanite flotation by ultrasonic pre-treatment. In: Physicochemical Problems of Mineral Processing, 2012, 455-462 |
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| 2008 | Safak G. Özkan, Halit Z. Kuyumcu, Güven Önal: A recent outlook for borates mining and industry in Turkey. In: World of Mining-Surface&Underground, 2008, 43-47 |
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| 2007 | Safak G. Özkan and
Halit Z. Kuyumcu: Design of a flotation cell equipped with ultrasound transducers to enhance coal flotation. In: Ultrasonics Sonochemistry, 2007, 524-529 |
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| 2007 | Erdogan Yigit and
Safak G. Özkan: FLOTASYON YONTEMI VE UYGULAMALARI (FLOTATION METHOD AND APPLICATIONS)
(original text in Turkish, but with English abstract). Istanbul University Press, 2007 |
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| 2006 | Safak G. Özkan and
Halit Z. Kuyumcu: Investigation of mechanism of ultrasound on coal flotation. In: International Journal of Mineral Processing, 2006, 234-237 |
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| 2006 | Safak G. Özkan and
Halit Z. Kuyumcu: Zum Einfluss von Ultraschall auf die Steinkohleflotation (The Influence of ultrasonics on coal flotation). In: Aufbereitungs Technik, 2006, 23-33 |
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