Abstract
Particle separation by selective wet agglomeration was investigated for a suspension with particle concentration of 10-40vol%. The suspension consisted of calcium carbonate particles and soda lime glass particles, with median diameters of 9.2μm and 18.6μm respectively. Dodecane was used as a bridging liquid. The fluidity of suspension decreased with an increase in particle concentration, and the wet agglomeration process was affected by the fluidity of the suspension. However, the influence of fluidity on particle separation efficiency was small. The particle separation efficiency by selective wet agglomeration became high at a high particle concentration, and the maximum separation efficiency of 0.93 was attained at the particle concentration of 40vol%. By surface treatment of suspended particles and bridging liquid droplets, the particle separation efficiency markedly changed due to the change in adhesion tension.
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