Preferential positioning and phase exposure of granular particles at hydrophobic liquid-water interface

Abstract The positioning of granular limestone and quartz particles at the hydrophobic liquid-water interfaces was evaluated and compared experimentally and analyzed by the theoretical analyses by considering the electrostatic interaction and gravitational effects. Experiments were performed with light hydrophobic liquids (tetradecane, silicone oil with viscosities 10 and 100 cSt, and South Louisiana crude oil) which were submerged by granular limestone and quartz with different particle sizes (average particle radius 0.25, 0.10,