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- W3214257052 abstract "In this study, the electroflotation of quartz and magnetite with cationic collector dodecylamine (DDA) and anionic collector sodium oleate (NaOL) were investigated to gain a better understanding of the electroflotation process and identify methods to improve it. An interesting phenomenon accompanied with obvious promotion (NaOL is used as collector) and inhibition (DDA-HCl is used as collector) of quartz flotation was observed after electrolysis. The obvious promotion arouse from the supply of the metal cations as active site for the adsorption of negatively charged group and increase active collecting species ionic forms RCOO- and (RCOO)22–. Conversely, the obvious inhibition originated from the decrease of the active collecting species RNH3+ and (RNH3)22+. An obvious inhibition phenomenon was observed after the electrolysis for the magnetite. This is because the active collecting species RNH3+, (RNH3)22+, RNH2·RNH3+ and RCOOH molecule decreased significantly after electrolysis. Furthermore, a comparison test between the regular flotation and electroflotation was conducted in the reverse flotation of magnetic separation concentrate. Compared with the regular flotation process, electroflotation flotation was characterized by simple reagent regime (without pH regulator and activator) and moderate conditions (natural pH), which had mild operation condition superiority. Moreover, the flotation product index of electroflotation can be better through slightly adjusting the reagent regime, and it can be certain that electroflotation is an effective process in the reverse flotation of magnetite. These findings provided a novel perspective for understanding the electroflotation process." @default.
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- W3214257052 date "2022-01-01" @default.
- W3214257052 modified "2023-10-17" @default.
- W3214257052 title "Effect of electroflotation on quartz and magnetite and its utilization on the reverse flotation of magnetic separation concentrate" @default.
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- W3214257052 doi "https://doi.org/10.1016/j.mineng.2021.107292" @default.
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