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Comparison of non-ionic and ionic collectors in the flotation of coal fines
(Pergamon-Elsevier Science Ltd, 2003) Sis, H; Ozbayoglu, G; Sarikaya, M
Some ionic collectors Were used as an alternative to conventional non-ionic collectors to obtain clean concentrates from fine coal samples containing 46.1% ash. Mixtures of kerosene and pine oil were used as conventional reagents while commercial fatty acids were used as ionic collectors. Flotation results showed that conventional collectors could not reduce the ash content of concentrate below 21.0% whereas, ionic collectors were found significantly better at reducing the ash content down to 16%, but their yields were lower. (C) 2003 Elsevier Science Ltd. All rights reserved.
Utilization of fine coal tailings by flotation using ionic reagents
(Taylor & Francis Inc, 2004) Sis, H; Ozbayoglu, G; Sarikaya, M
Fatty acid type ionic collectors were used as an alternative to conventional oily collectors, kerosene, and pine oil mixture in the flotation of coal tailing with 46.1% ash. The conventional collectors could not reduce the ash content of the concentrate below 22%. On the other hand, ionic collectors were found to be significantly better at reducing the ash content down to 13%. It was concluded that despite their lower flotation yield and higher consumptions, certain ionic collectors could be used successfully in coal flotation where cleaner concentrates are required from coal fines with high ash content.