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Mechanisms for the improved flotation of inherently hydrophobic graphite in electrolyte solution

Autorzy
Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
It is well documented that unavoidable ions in a pulp such as Mg2+, Ca2+, and K+ have a significant effect on the interaction for particles, especially for flotation of metallic sulfide minerals and clay minerals. In this study, the effect of electrolytes on the flotation of inherently hydrophobic mineral-graphite was studied. It was found that the zeta potential showed a dramatic decrease, and the reagent adsorption capacity of mineral enhanced in the present of electrolytes. The possible mechanism responsible for improved recovery was investigated by electrokinetic, surface tension and ions adsorption tests. It is likely that the hydrophobic force is stronger than the electrostatic force due to the reduced potential of graphite. This might be in favor of the formation of hydrophobic oil film leading to an increase in the graphite floatability. The experiments provided a new spectacle to study inherently hydrophobic mineral processing with electrolyte solution.
Słowa kluczowe
Rocznik
Strony
944--954
Opis fizyczny
Bibliogr. 40 poz., rys. kolor.
Twórcy
autor
  • China University of Mining and Technology, Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, 221116, Jiangsu, China
autor
  • China University of Mineral and Technology, 221116, Jiangsu, China
autor
  • China University of Mining and Technology, Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, 221116, Jiangsu, China
autor
  • China University of Mining and Technology, Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, 221116, Jiangsu, China
autor
  • China University of Mining and Technology, Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, 221116, Jiangsu, China
Bibliografia
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  • 35. WANG H., FENG Q., LIU K., 2016, The dissolution behavior and mechanism of kaolinite in alkali-acid leaching process, Applied Clay Science, 132-133, 273-280.
  • 36. XING Y., GUI X., LEI P., PINCHASIK B.E., CAO Y., LIU J., 2017, Recent experimental advances for understanding bubble-particle attachment in flotation, Advances in Colloid & Interface Science, 246, 105-132.
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-033b64af-5f79-42f1-882e-ab7a68435584
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