WET MILLING METHOD FOR HEAVY CALCIUM CARBONATE

摘要

PROBLEM TO BE SOLVED: To provide a wet milling method for heavy calcium carbonate in which high efficiency can be obtained and fine setting of the particle size of a product is possible by using a circulation type wet medium stirring mill provided with a motor having a relatively small capacity.;SOLUTION: In the milling method of heavy calcium carbonate including milling heavy calcium carbonate particles in a raw material slurry prepared by dispersing the heavy calcium carbonate particles in a dispersion medium with the circulation type wet medium stirring mill, the number of revolutions of a motor for rotating a stirring member of the medium stirring mill is controlled so that the power of a motor of the medium stirring mill is kept constant.;COPYRIGHT: (C)2012,JPO&INPIT