WET CLASSIFIER AND WET CLASSIFICATION METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: 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.;SOLUTION: 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.;COPYRIGHT: (C)2011,JPO&INPIT