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1.


    Plotnikova, A. A.
    Structural Characteristics and Processability of Sphalerite in Lead-Zinc Ore of the Gorevka Deposit / A. A. Plotnikova, V. I. Bragin, Y. V. Knyazev // J. Min. Sci. - 2019. - Vol. 55, Is. 6. - P. 995-1006, DOI 10.1134/S1062739119066381. - Cited References: 33 . - ISSN 1062-7391. - ISSN 1573-8736
РУБ Mining & Mineral Processing

Кл.слова (ненормированные):
Lead-zinc ore -- iron-bearing sphalerite -- pyrrhotine -- X-ray phase analysis -- micro-X-ray spectrum analysis -- high-gradient separation -- Mossbauer spectroscopy
Аннотация: The theoretical and experimental substantiation of the behavior of ferrous sphalerite in magnetic separation is given in terms of the Gorevka deposit ore. In sphalerite of this deposit, the content of isomorphous iron ranges as 4-9%. The Mossbauer spectroscopy showed the singlet and two doublet lines of iron, demonstrating separate arrays of iron atoms in sphalerite lattice, with formation of Fe-Fe pairs and clusters of three or more iron atoms. It is found that distribution of iron in sphalerite into three forms coincides for magnetic and nonmagnetic products of zinc concentrate separation. It is determined that magnetic separation undivides sphalerite grains by the isomorphous iron content but is governed by the genetic features of the deposit formation-association of sphalerite with magnetic minerals (pyrrhotine and siderite) and the absence of such associations in galena.

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Публикация на русском языке Плотникова А. А. Структурно-технологические характеристики сфалерита в свинцово-цинковых рудах Горевского месторождения [Текст] / А. А. Плотникова, В. И. Брагин, Ю. В. Князев // Физ.-техн. проблемы разраб. полез. ископаемых. - 2019. - № 6. - С. 152-164

Держатели документа:
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Kiriensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Bragin, V. I.; Knyazev, Yu. V.; Князев, Юрий Владимирович
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2.


   
    Analysis of function of copper sulfide nanoparticles as sphalerite flotation activator / S. A. Vorob’ev, E. A. Burdakova, A. A. Sarycheva [et al.] // J. Min. Sci. - 2021. - Vol. 57, Is. 1. - P. 144-153, DOI 10.1134/S1062739121010154. - Cited References: 22. - This study was supported by the Russian Science Foundation, project no. 18-17-00135 . - ISSN 1062-7391
Кл.слова (ненормированные):
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 characterized 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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Публикация на русском языке Изучение действия наночастиц сульфида меди как активатора флотации сфалерита [Текст] / С. А. Воробьев, Е. А. Бурдакова, И. В. Сарычева [и др.] // Физ.-техн. проблемы разраб. полез. ископаемых. - 2021. - № 1. - С. 159-168

Держатели документа:
Institute of Chemistry and Chemical Technology, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk Science Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation

Доп.точки доступа:
Vorob’ev, S. A.; Burdakova, E. A.; Sarycheva, A. A.; Volochaev, M. N.; Волочаев, Михаил Николаевич; Karacharov, A. A.; Likhatskii, M. N.; Mikhlin, Y. L.
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3.


   
    Synthesizing zinc sulfide films on the gold surface as the sensor for electrochemical quartz crystal microbalance / D. O. Krinitsyn, A. S. Romanchenko, S. A. Vorob'ev [et al.] // Russ. J. Electrochem. - 2021. - Vol. 57, Is. 12. - P. 1157-1163, DOI 10.1134/S1023193521120041. - Cited References: 23. - The study was supported by the Russian Scientific Foundation (grant no. 18-17-00135) . - ISSN 1023-1935. - ISSN 1608-3342
РУБ Electrochemistry
Рубрики:
CHEMICAL BATH DEPOSITION
   ZNS

   SPHALERITE

   ELECTRODES

   ACTIVATION

Кл.слова (ненормированные):
sphalerite -- thin films -- hydrochemical deposition -- electrochemistry -- quartz crystal microbalance -- dynamic light scattering -- gold -- spectroscopy
Аннотация: A zinc sulfate film is deposited from aqueous solutions of zinc sulfate onto the gold surface with the aim of preparation of a sensor for electrochemical quartz crystal microbalance (EQCM). The kinetics of this process, the particles formed in solution, and the film itself are studied by the methods of electrochemical quartz crystal microbalance, X-ray photoelectron spectroscopy, transmission electron microscopy, atomic force microscopy, optical and Raman spectroscopies, and dynamic light scattering. The effect of the procedure of gold surface preparation, the reagent concentration, and the temperature on the film adhesion, the length of induction period, the kinetics of film growth, and its structure and thickness are studied. It is shown that the film formation proceeds as a result of deposition of sufficiently coarse 200-700 nm colloid particles of sphalerite. It is demonstrated that this sensor can be used in studying the electrochemical reactions of ZnS and the interface phenomena by the methods of EQCM and cyclic voltammetry.

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Публикация на русском языке Получение пленок сульфида цинка на поверхности золота как сенсора электрохимического кварцевого микробаланса / Д. О. Криницын, А. С. Романченко, С. А. Воробьев [и др.] // Электрохим. - 2021. - Т. 57 № 12. - С. 762-768

Держатели документа:
Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Russian Acad Sci, Kirenskii Inst Phys, Siberian Branch, Krasnoyarsk, Russia.

Доп.точки доступа:
Krinitsyn, D. O.; Romanchenko, A. S.; Vorob'ev, S. A.; Likhatskii, M. N.; Karacharov, A. A.; Krylov, A. S.; Крылов, Александр Сергеевич; Volochaev, M. N.; Волочаев, Михаил Николаевич; Mikhlin, Yu L.; Russian Scientific FoundationRussian Science Foundation (RSF) [18-17-00135]
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