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The grinding of organic dyestuffs
Author(s) -
Jenczewski Theodore J.
Publication year - 1972
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450500111
Subject(s) - grinding , vibrator (electronic) , cylinder , mill , materials science , point (geometry) , slip (aerodynamics) , mechanical engineering , mechanics , composite material , acoustics , engineering , physics , geometry , mathematics , aerospace engineering
A mechanism for grinding disperse dyes in a sand mill is discussed which is supported by experimental data. Experimental data with disk, cylinder and vibrator agitators are examined from the point of view of dimensional analysis. All rotors exhibited fluid slip and decreased efficiencies at high rotor speeds. Cylinder rotors provided higher rates of energy input to the milling paste, and shorter grinding times, relative to disk and vibrator agitators.