XXXI International Mineral Processing Congress 2024 Proceedings/Washington, DC/Sep 29–Oct 3 2157
experimental analysis, this study contributes valuable
insights and sets the stage for further developments in the
field of mineral processing.
FUNDING
This research was funded by the National Natural Science
Foundation of China, which grants: The interface regula-
tion mechanism of efficient flotation separation of compli-
cated nonferrous metal resources and the design of targeted
reagent molecules (U20A20269).
DATA AVAILABILITY STATEMENT
Not applicable.
CONFLICTS OF INTEREST
The authors declare no conflict of interest.
REFERENCES
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xanthate adsorption and bubble attachment to
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Minerals Engineering, 2017, 112: 36–42.
[2] Ejtemaei M, Nguyen A V. A comparative study of the
attachment of air bubbles onto sphalerite and pyrite
surfaces activated by copper sulphate[J]. Minerals
Engineering, 2017, 109: 14–20.
[3] Jin J, Miller J D, Dang L X, et al. Effect of Cu2+ activa-
tion on interfacial water structure at the sphalerite sur-
face as studied by molecular dynamics simulation[J].
International Journal of Mineral Processing, 2015, 145:
66–76.
[4] Ejtemaei M, Nguyen A V. Characterisation of sphaler-
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Table 1. The parameters of adsorption thermodynamics
ΔH(kJ·mol–1) ΔS(J·mol–1K–1)
ΔG(kJ·mol–1)
293.15K 298.15K 303.15K 308.15K
Cu-activated sphalerite –59.25 276.45 –140.29 –141.68 –143.06 –144.44
Sphalerite –38.99 191.38 –95.10 –96.06 –97.02 –97.97
0 1 2 3 4 5 6
0
2
4
6
8
10
C
e (10-5mol/L)
293.15K
298.15K
303.15K
308.15K
Cu-activated sphalerite
Figure 11. Adsorption isotherms of xanthate on Cu-activated sphalerite surfaces (t =6 h
and pH =8.0)
Q(10-7mol/m2)
e