Abstract:

Pulp density plays a very important role in flotation. Flotation process usually is carried out at solid concentrations below 30-35 %, The data on flotation of mineral particles in higher pulp density are not ready available, thus, this paper is to present results of the study on the influence of the solid concentration of the pulp on relative recovery of particle size fractions. The study results showed that the influence of the solid concentration of the pulp on the particle flotation varied with sizes, the coarser the particles, the severer they are affected. With double increase in the solid concentration of the pulp, the recovery of the size fraction +0,125-0,2mm were reduced nearly 5 times while the recovery of the -0,045mm size fraction reduced just about 2 times. Based on the research results, it can be concluded that it is possible flotation of pulp at high solid concentration such as high as 60 % or even higher.