|About this Abstract
||2021 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials 2021
||Flotation Behaviors of Magnesite and Dolomite Using a Mixed Collector
||Wencui Chai, Yankun Wu, Huaxia Li, Yijun Cao
|On-Site Speaker (Planned)
Magnesite and its main associated mineral dolomite are with small floatability difference because of similar crystal structure and surface properties, which results in low flotation recovery of magnesite from dolomite. In order to solve the problem, a new depressant of dolomite was proposed in this paper. The effects of the new depressant on flotation behaviors of magnesite and dolomite were investigated by flotation experiment, and the mineral wettability was characterized by contact angle testing. The results show that the new depressant could reduce the hydrophobicity of dolomite and improve the floatability difference between magnesite and dolomite using sodium oleate as collector. With the absence of dispersant, the flotation separation index of two minerals increases from 1.33 to 1.88.