The effect of cavitation phenomena excited by ultrasonic radiation and in a jet-type hydrodynamic cavitator on the change in the phase-dispersed state of hydrated calcium oxide was investigated. The influence of the conditions of cavitation activation of calcium hydroxide on the sedimentation stability of its suspension was established. Based on the analysis of the intensity of sedimentation of Ca(OH)2 particles after cavitation treatment of calcium hydroxide suspension, the probable course of this process in different time periods is proposed. According to the Stokes equation, the distribution of particles by dispersion was calculated, and the dynamics of particle size changes depending on the specific energy introduced into the suspension by cavitation devices were determined. It was established that after cavitation activation, Ca(OH)2 particles acquire a charge, due to which the phase state of calcium hydroxide changes, and its reactivity will increase.
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