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A combined model of mass transfer coefficients for contaminated drop liquid‐liquid systems
Author(s) -
Slater M. J.
Publication year - 1995
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.5450730406
Subject(s) - contamination , mass transfer , reynolds number , drop (telecommunication) , mechanics , mass transfer coefficient , materials science , liquid–liquid extraction , process engineering , environmental science , extraction (chemistry) , chromatography , chemistry , mechanical engineering , engineering , physics , ecology , turbulence , biology
Mass transfer rates to and from drops in liquid‐liquid extraction equipment are often likely to be reduced by the presence of surface active contaminants. For industrial column design circumstances it is ideally required to account for the extent of contamination in a quantitative manner yet existing design procedures do not allow this to be done for the typical intermediate Reynolds number region of 10 to 100. A method is proposed for correcting continuous phase and drop mass transfer coefficients for the deleterious effects of contamination using only one contamination parameter which needs to be determined experimentally.