202261 · Copper is made from copper ores through concentration, smelting and refining. The ores are concentrated through froth flotation in the form of copper-sulfide or copper-iron-sulfide minerals (e.g. chalcopyrite, chalcocite and etc.), which are then melted in a high-temperature reheating furnace (± 1250 ℃).
view more20231215 · Therefore, the pH for flotation separation of chalcopyrite against pyrite with BN was much lower than that with sodium isobutyl xanthate, reducing lime consumption and carbon emission.
view more2022315 · The results of testing Tecflote collectors demonstrated their effectiveness in the flotation of copper-bearing ores and high selectivity toward chalcopyrite. It is determined that Tecflote agents can replace or supplement thiol collectors used for flotation of copper-bearing sulfide ores. The concentration performance will be increased [ 21 , 22 ].
view moreThe selective inhibition effect of pyrogallic acid (PA) on galena in chalcopyrite flotation was investigated in this study. Flotation trials showed that PA markedly depressed galena with only a small effect on chalcopyrite, which contributed to the separation of chalcopyrite and galena by flotation after adding a low dosage of PA.
view more2022111 · The flotation performance of BDT was determined by micro-flotation experiments on single mineral and mixed minerals of chalcopyrite and galena, and the adsorption mechanism of BDT on the mineral surface was analyzed through a series of surface analytical techniques and density functional theory (DFT) calculations.
view more202011 · The results for cobalt are particularly exciting given the low recovery of cobalt in most smelting operations and the loss of cobalt to converter slags in conventional approaches. In addition, significant nickel losses are often incurred to flotation cleaner tailings to make a smeltable concentrate at an acceptable level of magnesium.
view more201241 · In mix ore (enargite + chalcopyrite) flotation, 97% of enargite was first removed at pH 4 followed by chalcopyrite flotation at pH 8, and over 95% recovery was achieved in 15 min flotation time.
view more2021811 · The galvanic interaction between chalcopyrite and pyrite in the presence of lignosulfonate-based biopolymers and its effects on flotation performance Yufan Mu, Yongjun Peng, Rolf A. Lauten 15 June 2018 Pages 91-98 View PDF Article preview Research articleFull text access
view more2021111 · Peng et al. [ 27] found that the chalcopyrite froth flotation recovery of a high‑chromium alloy (30% chromium) medium is higher than that of a low-carbon-steel medium. Compared with a forged-steel medium, a high‑chromium-alloy medium has more advantages in the flotation separation of chalcopyrite and pyrite [ 28 ].
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