Critical Solution Surface Tension for Liquid-Liquid Extraction
Yükleniyor...
Dosyalar
Tarih
2010
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This paper introduces a strong correlation between the solution surface tension and the liquid-liquid extraction process of minerals. It was found that the liquid-liquid extraction recoveries of celestite, magnesite and dolomite minerals decreased with decreasing solution surface tension, and eventually the liquid-liquid extraction of these minerals did not take place below a particular value of the solution surface tension. The solution surface tension value at which liquid-liquid extraction does not occur was defined as 'the critical solution surface tension for liquid-liquid extraction, gamma(c-e)'. Consequently, the solution surface tension value for a successful liquid-liquid extraction of a mineral must be higher than the critical solution surface tension of liquid-liquid extraction (gamma(c-e)) value. In addition, the experimental results have demonstrated that the gamma(c-e) values obtained from liquid-liquid extraction tests of these minerals were slightly higher than their critical surface tension of wetting (gamma(c)) values based on the contact angle measurement technique. These differences between the gamma(c-e) and the gamma(c) values indicate that the liquid-liquid extraction process of the minerals took place after reaching a sufficiently low wettability.
Açıklama
Anahtar Kelimeler
Liquid-liquid extraction, Solution surface tension, Celestite, Magnesite, Dolomite
Kaynak
Separation and Purification Technology
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
76
Sayı
Künye
Özkan, A., Düzyol, S., (2010). Critical Solution Surface Tension for Liquid-Liquid Extraction. Separation and Purification Technology, 76, 79-83. doi: 10.1016/j.seppur.2010.09.025
