The invention provides wet ground
calcium carbonate as well as a preparation method and application thereof, and belongs to the technical field of
fine chemical engineering. Marble particles are ground and then mixed with water, obtained marble
slurry is mixed with a first
grinding aid, the first
grinding aid comprises a nonionic
fatty alcohol ethyoxyl compound and
polyethylene glycol, first
wet grinding is carried out, the obtained first
slurry is mixed with a second
grinding aid, second
wet grinding is carried out, and the marble
slurry is obtained. The second grinding aid comprises a high-molecular block
copolymer containing a
pigment-friendly filler group and an alkynediol
ethylene oxide adduct, and carrying out wet classification and flash
drying on the obtained second slurry to obtain wet ground
calcium carbonate. According to the invention, a two-section series wet-process stirring process is adopted, the phenomenon of material agglomeration in the
drying process of a traditional wet-process
grinding process is effectively avoided by adjusting the
solid content of the marble slurry, screening a grinding aid and selecting a wet-process grading process, and the defect that the particle size of the existing finished product heavy
calcium carbonate is obviously larger than that of the material in the slurry is overcome.