Determination of the critical surface tension using an automatic wetting balance

Determination of the critical surface tension of wetting of minerals treated with surfactants by shear flocculation approach

“…One of these quantifying parameters mentioned above is the critical surface tension of wetting (γ c ) to achieve selectivity in surface chemistry processes [7]. The γ c parameter is determined by contact angle measurement, flotation, immersion time, bubble pickup, film flotation, automatic wetting balance, and modified Hildebrand-Scott equation methods [8][9][10][11][12][13][14]. The Zisman contact angle measurement technique and the flotation method are the two major techniques used to determine the (γ c ) values of minerals among these experimental and empirical techniques [15][16][17][18].…”

Critical solution surface tension for oil agglomeration

“…One of these quantifying parameters mentioned above is the critical surface tension of wetting (c c ) values to achieve selectivity in surface chemistry processes (Yekeler and Yarar, 1994a). Contact angle measurement, flotation, immersion time, bubble pickup, film flotation, automatic wetting balance, modified Hildebrand-Scott equation or shear flocculation methods can be used alternatively for determining the c c values of solids or minerals (Shafrin and Zisman, 1960;Yarar and Kaoma, 1984;Garchva et al, 1978;Sun and Troxell, 1957;Williams and Fuerstenau, 1987;Rosano et al, 1971;Wu, 1968;Ozkan, 2004). The Zisman contact angle measurement technique and the flotation method are the two major techniques used to determine the (c c ) values of minerals among these experimental and empirical techniques (Kelebek, 1987;Yarar, 1988;Yekeler and Yarar, 1994a,b).…”

Variation of critical surface tension for wetting of minerals with roughness determined by Surtronic 3+ instrument

“…Several other techniques are also available for determining the c c values, such as flotation, immersion time, bubble pickup, film flotation, automatic wetting balance and modified Hildebrand -Scott equation methods (Williams and Fuerstenau, 1987;Zisman, 1964;Rosano et al, 1971;Sun and Troxell, 1957;Walker et al, 1952;Wu, 1968).…”