Effect of matching relationship between particles and bubbles on the flotation of fine cassiterite
Abstract：Because of the difficulty to beneficiate fine cassiterite, the flotation behaviors of cas- siterite with different size fractions were investigated using a modified Hallimond tube, and the best matching relationship between particles and bubbles was studied by H2electrolysis flota- tion tests and high speed charge coupled device camera （high speed CCD camera）. Under a fixed collector concentration and pH value, the effects of particle size fraction, electrolytic con- ditions, including cathode aperture and current intensity, on the cassiterite recovery were ex- plored. The size change and distribution of bubbles were observed. Meanwhile, the interaction between particles and bubbles was also studied. The results show that in the presence of 100 mg/L MOS and pH of about 4.5, the flotation efficiency of cassiterite is considerably better. The cathode aperture, current intensity and particle sizes exert significant influence on the re- covery of cassiterite. There is an optimum matching range between particle size and bubble size within which the peak point of acquisition probability and recovery of the cassiterite occurred.
Keywords：fine cassiteritebubbleelectro-flotationhigh speed CCD camera
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 420-424,438 )