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February 5, 2026Advanced Theory and Simulations4 citations

The Flotation Mechanism and Quantum Chemical Calculation of Ba(II) Ions Activating Quartz in a Sodium Oleate System

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WLWencheng LiZMZhijun MaXWXingyuan Weng

Key Points

  • This research aims to investigate how barium(II) ions activate quartz in flotation processes using sodium oleate.
  • Conducted micro-flotation studies to assess quartz recovery rates with Ba(II) ions.
  • Measured zeta potential to evaluate surface charge changes on quartz.
  • Utilized Fourier-transform infrared spectroscopy to confirm chemical adsorption.
  • Performed electronic density difference and density of states studies for bond analysis.
  • Quartz recovery reached up to 99.85% with Ba(II) ions present.
  • Ba(II) ions created active sites on quartz via electrostatic interactions.
  • Strong electron transport between Ba and O was observed, indicating chemical bond formation.

Abstract

ABSTRACT Barium(II) (BaII) ion activation considerably increases quartz recovery, reaching up to 99.85%, as shown by micro‐flotation studies. Ba(II) ions preferentially adsorb onto the quartz surface, creating active sites through electrostatic interactions that facilitate sodium oleate (NaOL) adsorption, as demonstrated by zeta potential measurements. Chemical adsorption is confirmed by Fourier‐transform infrared spectroscopy and X‐ray photoelectron spectroscopy. Electronic density difference and density of states studies reveal strong electron transport between Ba and O, forming persistent chemical bonds. By combining chemical bonding and physical adsorption, Ba(II) ions improve NaOL adsorption on the quartz surface, offering a theoretical foundation for flotation.

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Cite This Study

Li et al. (2026) studied this question.

synapsesocial.com/papers/69843360f1d9ada3c1fb07f1https://doi.org/10.1002/adts.202501927
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