首页|Flotation separation of fluorite from calcite using bis hydroxamic acid collector
Flotation separation of fluorite from calcite using bis hydroxamic acid collector
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NSTL
Elsevier
? 2022 Elsevier LtdThe efficient separation of fluorite and calcite is a challenging task in the field of mineral processing because of their similar chemical and physical properties. In this research, octylamino-bis-(butanohydroxamic acid) (OBHA) was introduced as collector into a flotation system comprising fluorite and calcite, and the separation of fluorite and calcite was realized in the absence of any depressants. ζ potential, FTIR, XPS measurements and DFT calculations were performed to investigate the mechanism for the selective adsorption of OBHA. The results indicate that the hydroxamic acid group of OBHA account for the adsorption process, and the adsorption of the hydroxamic acid group on fluorite was much stronger than that on calcite surface.
AdsorptionCalciteDFT calculationFlotationFluorite
Lv L.、Yue T.、Duan H.、Liu W.
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Key Laboratory for Polymetallic Ore's Evaluation and Utilization Ministry of Natural Resources
School of Resources & Civil Engineering Northeastern University
NSTL
Elsevier
