ANALYSIS OF FUNCTION OF COPPER SULFIDE NANOPARTICLES AS SPHALERITE FLOTATION ACTIVATOR : научное издание

Описание

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.1134/S1062739121010154

Ключевые слова: nanoparticles, copper sulfide, flotation, sphalerite, activators, dynamic light scattering, x-ray photoelectron spectroscopy

Аннотация: The authors compare the effect exerted by copper ions and sulphide copper nanoparticles on flotation of Gorevka deposit sphalerite using potassium n-butyl xanthate and in reagent-less regime. Covelline-like colloid particles 4-8 nm in size, obtained in interaction of copper (II) and sulfide ions in aqueous solutions, are characteriПоказать полностьюzed using the methods of dynamic light scattering, electron microscopy and diffraction. Sphalerite surface after reaction with copper ions and CuS dispersoid solutions are described by zeta-potential measurements and X-ray photoelectron spectroscopy. It is found that sphalerite flotation after activation with nanoparticles is lower than with copper ion solutions of the same concentrations, and improves with increasing duration of activation and flotation processes. The mechanism of CuS nanoparticles consists in creation of active centers for the collector to attach to, which intensifies the hydrophobic behavior and adsorption of the collector. Moreover, CuS nanoparticles promote formation of a special microrelief of the solid-liquid interface, which ensures rupture of liquid film and attachment of sphalerite particles to air bubbles when they collide.

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Издание

Журнал: JOURNAL OF MINING SCIENCE

Выпуск журнала: Vol. 57, Is. 1

Номера страниц: 144-153

ISSN журнала: 10627391

Место издания: NEW YORK

Издатель: PLEIADES PUBLISHING INC

Персоны

  • Vorob'ev A. (Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia)
  • Burdakova E.A. (Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Sarycheva A.A. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Volochaev M.N. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Krasnoyarsk 660036, Russia; Reshetnev Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia)
  • Karacharov A.A. (Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia)
  • Likhatskii M.N. (Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia)
  • Mikhlin Yu L. (Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia)

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