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On the extraction of oil from raw comminuted cottonseed kernels with the acetone‐hexane‐water azeotrope
Author(s) -
Frampton Ver L.,
Pepperman Armand B.
Publication year - 1967
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02666793
Subject(s) - azeotrope , cottonseed , cottonseed oil , extraction (chemistry) , hexane , acetone , chromatography , chemistry , raw material , analytical chemistry (journal) , materials science , organic chemistry , food science , distillation
The effects of particle size on the rate of ex‐traction of oil from raw comminuted cottonseed kernels with the acetone‐hexane‐water azeotrope were examined. Five samples of cottonseed of different average particle sizes and three extrac‐tion times were used in the investigation. The particles were comminuted in such a manner as to be, as a first approximation, essentially spher‐ical in shape; the concentration gradient of oil in the particles was found to follow the relationship L = r ‐A +B where L is the oil content of the extracted seed, r is the particle radius, and A and B are constants. The establishment of the concentration gradient was extremely rapid (within 10 seconds), and the constants A and B assume the same values for each of the three extraction times employed. These two facts in‐dicate that mass oil movement in the particles is a dilatation and occurs too rapidly for diffusion phenomena to be evident.