Assessment of pH-responsive nanoparticles performance on laboratory column flotation cell applying a real ore feed
Journal article, 2020

Nanoparticles (NPs) can promote the column flotation process in mining industry. Nanoparticles’ effects on column flotation process (copper recovery, grade and flotation rate constant) are assessed in Sarcheshmeh Copper Complex, Iran, through response surface methodology (RSM) optimization technique. The γ-Al2O3, α-Fe2O3, SiO2, and TiO2 nanoparticles are selected for these experiments. A flotation rate constant is chosen as a response to assess the effect of nanoparticles on flotation in its kinetic sense. The process pH and nanoparticle dosage are selected as the influential parameters. Results obtained from RSM indicated that the maximum percentage of Cu recovery and grade is obtained at pH of 12 and nanoparticle dosage of 6 kg/t, through α-Fe2O3 and γ-Al2O3 nanoparticles, respectively. Applying nanoparticles in particular γ-Al2O3 and α-Fe2O3 increases the Cu recovery by 8–10% together with the grade by 3–6% in a significant manner. It is revealed that nanoparticles could effectively be applied in enhancing the flotation performance.

Cu recovery


Response surface methodology

Column flotation


Samiramis Nasirimoghaddam

Shahid Bahonar University of Kerman

Ali Mohebbi

Shahid Bahonar University of Kerman

Mohsen Karimi

Chalmers, Chemistry and Chemical Engineering

M. Reza Yarahmadi

Sarcheshmeh Copper Complex

International Journal of Mining Science and Technology

2095-2686 (ISSN)

Vol. 30 2 197-205

Subject Categories

Chemical Sciences



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2/4/2021 2