To provide a wet classifier that further reduces the particle size (separation diameter) of 50% fractional separation efficiency when fine particles are classified, and to provide a wet classification method using the classifier.
The wet classifier has an electric field mechanism for applying an electrostatic field to particles in slurry, and is desirably a liquid cyclone. The electric field for applying the electrostatic field to the particles is desirably ≥70 V. In the wet classification method using the wet classifier, the slurry containing the particles is subjected to distributed processing, and classification processing is performed within 15% rate of change for zeta potential immediately after the distribution. It is preferable that a bead mill is used for the distributed processing.
YAMAMOTO TETSUYA
KUNITOMO OSAMU
YAMAMOTO KAZUYA
UNIV HIROSHIMA
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