Critical oil-liquid interfacial tension for some oil-assisted fine particle processing methods


Duzyol S., Ozkan A., Yekeler M.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, cilt.398, ss.32-36, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 398
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1016/j.colsurfa.2012.02.005
  • Dergi Adı: COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
  • Sayfa Sayıları: ss.32-36

Özet

This paper presents that oil-liquid interfacial tension (gamma(OL)) value significantly affects the oil agglomeration and liquid-liquid extraction processes as oil-assisted methods in fine particle processing. The decrease in the oil-liquid interfacial tension leads to the decreases in the recoveries of minerals in both oil agglomeration and liquid-liquid extraction techniques. Eventually, these oil-assisted methods do not take place below a particular value of oil-liquid interfacial tension. The oil-liquid interfacial tension value at which oil agglomeration does not occur was defined as 'critical oil-liquid interfacial tension for oil agglomeration, gamma(c-OL-e)' and at which liquid-liquid extraction does not take place was also defined as 'critical oil-liquid interfacial tension for liquid-liquid extraction, gamma(c-OL-e)' Consequently, the oil-liquid interfacial tension of the medium for successful processes of oil agglomeration and liquid-liquid extraction of a mineral must be higher than the related critical interfacial tension value. (C) 2012 Elsevier B.V. All rights reserved.