Effects of frothers on bubbles size and flotation performance of hydrophobic minerals

作     者：Gülşah GÜVEN Berivan TUNÇ Ş.Beste AYDIN Gülay BULUT Gülşah GÜVEN;Berivan TUNÇ;Ş.Beste AYDIN;Gülay BULUT

作者机构：Mineral Processing Engineering DepartmentFaculty of MinesIstanbul Technical UniversityMaslak 34469IstanbulTurkey Research CenterMetso OutotecKuparitie 1028101 PoriFinland 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2024年第31卷第7期

页      面：2280-2299页

核心收录：

学科分类：081902[工学-矿物加工工程] 0819[工学-矿业工程] 08[工学] 

基　　金：Project(ID42787)supported by the Istanbul Technical University BAP(Scientific Research Project)Department Turkey 

主　　题：flotation frother blends bubble size coal and talc flotation 

摘      要：Frothers facilitate the reduction of bubbles size by preventing bubbles coalescence and produce more stable *** collision probability of the bubbles and particles substantially increases by decreasing bubble *** the same volume system,fewer bubbles result from a distribution of large-sized bubbles,and more bubbles result from a distribution of small-sized *** this research,fundamental two-phase frother characterization parameters were aimed to link with three-phase coal and talc flotation *** this purpose,the effect of single and dual frother systems on inhibiting bubble coalescence was investigated with methyl isobutyl carbinol(MIBC),isooctanol(2 ethyl hexanol),pine oil,and Dowfroth *** on the results of single frothers,isooctanol at the lowest critical coalescence concentration(CCC)value of 6×10^(−6) achieved the smallest bubbles with Sauter mean diameter of 0.80 *** blending Dowfroth 250 and pine oil,the bubbles size decreased significantly,reaching 0.45 *** the highest recoveries in coal flotation were obtained in single and frother blends where the bubbles size was measured as the smallest in two-phase system,and such a relationship was not found for talc flotation.