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Adsorption of dyestuffs onto chitin. External mass transfer processes
Author(s) -
McKay G.,
Blair H. S.,
Gardner J.
Publication year - 1982
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1982.070271116
Subject(s) - mordant , chitin , mass transfer , adsorption , chemistry , chitosan , chemical engineering , materials science , chromatography , nuclear chemistry , organic chemistry , dyeing , engineering
The effect of several variables on the adsorption rate of four dyestuffs onto chitin was studied. A model is proposed enabling the film mass transfer coefficients to be determined. The coefficients were independent of initial dye concentration, chitin mass, chitin particle size, and temperature; a slight dependence with agitation was obtained. The film mass transfer coefficients at 400 rpm were 2.8×10 −3 , 2.9×10 −3 , 3.9×10 −3 , and 0.9×10 −3 cm/s for Acid Blue 25, Acid Blue 158, Mordant Yellow 5, and Direct Red 85, respectively.