Тип публикации: статья из журнала
Год издания: 2026
Идентификатор DOI: 10.1134/S106273912601014X
Ключевые слова: sulfide minerals, arsenopyrite, antimonite, flotation, hydrophobic properties, bacteria Pseudomonas Japonica, biotechnology, selection
Аннотация: The modified surface of sulfide minerals (arsenopyrite and antimonite) after bio-treatment with bacteria <i>Pseudomonas Japonica</i> is studied using electroacoustic spectrometer Dispersion DT-310, scanning electron microscope Tescan Vega II SBH, digital technologies and DSA20 EasyDrop unit. It is found that bio-treatment leads to Показать полностьюsubstantial hydrophilization of the mineral surface, which is confirmed by an increase in the wetting angle by 40–50° and in the work of adhesion by 2 times. It is found that the electrochemical properties of the mineral surface also change, including the sign reversal of the $\zeta$-potential and the increase of the electric conductance by an order of magnitude. The scanning electron microscopy proved adsorption of the bacterial cells at the mineral surface. The proof tests confirmed efficiency of the bio-treatment and showed reduction in flotation of sulfides by 15–17% in their joint feed with xanthate. The studies display the promising nature of the micro-biological treatment of sulfides before selective flotation.
Журнал: Journal of Mining Science
Выпуск журнала: Т.62, №1
Номера страниц: 129-135
ISSN журнала: 10627391
Место издания: Moscow
Издатель: Pleiades Publishing, Ltd.