Critical solution surface tension for oil agglomeration

Comparison of stages in oil agglomeration process of quartz with sodium oleate in the presence of Ca(II) and Mg(II) ions

“…Also, in the oil agglomeration process, the particle surfaces should have a particular degree of hydrophobicity to achieve a successful oil agglomeration. Otherwise, kerosene used as bridging liquid does not attach sufficiently to the particle surfaces and therefore the oil agglomeration does not take place [1,8,[37][38][39]. Consequently, the oil agglomeration of quartz starts to occur after reaching a sufficient degree of hydrophobicity at the shear flocculation stage, which depends on the pH and cation concentration ranges in which a sufficient activation occurs at the coagulation stage.…”

Evaluation of Critical Parameters for Wettability-Based Processes in Mineral Processing

“…Ozkan et al [6] stated that a critical value of solution surface tension existed for achieving the oil agglomeration process. This critical value is slightly higher than the  c value of mineral.…”

“…Therefore, there is a considerable interest in developing process that could successfully handle such fine particles. Flotation, shear flocculation, oil agglomeration, liquid−liquid extraction methods are effective techniques among fine particle processing methods [1][2][3][4][5][6][7].…”

Recovering molybdenite from ultrafine waste tailings by oil agglomerate flotation

“…According to the concept of the critical surface tension of wetting, as developed by Zisman and co-workers, the solid or mineral surface is completely wetted by the liquid if the surface tension of liquid is equal to or less than the critical surface tension of the wetting value of solid or mineral surfaces (Cebeci and Sönmez, 2004a;Ozkan et al, 2005). The critical surface tension of wetting for molybdenite is about 42 mN/m (Kelebek, 1988;Ozcan, 1992).…”