Cationic collector conformations on an oxide mineral interface: Roles of pH, ionic strength, and ion valence

Comprehensive review on surfactant adsorption on mineral surfaces in chemical enhanced oil recovery

“…54 The increasing ionic strength with NaCl yielded a more rigid adsorbed layer of cationic behenyl trimethyl ammonium chloride (BTAC, C22) on the silica. 195 In CaCl2 solution, the adsorbed BTAC film became soft and highly dissipated at pH 5.7, while it was less soft at pH 10. These complexes (red dash circle).…”

A Novel Process to Recover Gypsum from Phosphogypsum

“…Generally, a proper increase in the concentration of the floating material can reduce the probability of particles (especially coarse particles) falling off the bubble, thus improving the recovery of useful minerals from coarse particles. A high concentration of the material plays an important role in weakening the influence of density and particle size on the velocity of the upper floating end [ 29 , 30 , 31 , 32 , 33 , 34 ]. However, owing to the fine particle size of the phosphogypsum material, the CaSO 4 ·2H 2 O content in the concentrate decreased significantly; the whiteness of the concentrate also decreased when the concentration exceeded 30%, and the recovery of the CaSO 4 ·2H 2 O increased slightly.…”

Editorial on Special Issue “Surface Chemistry in Mineral Processing and Extractive Metallurgy”

“…In order to liberate the metals of economic interest or reject the impurities, the efficiency of conventional mineral beneficiation techniques is usually low while feeding <20 µm particles [2]. The properties of such fine particles cannot be controlled by bulk properties albeit they depend on the surface properties of the particles [3]. Such particles in suspension may collide with each other due to the Brownian motion, and the suspension can be maintained at a stable level in the case of a high potential barrier.…”