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Al‐Pillared clay for cottonseed oil bleaching: An optimization study
Author(s) -
Caglayan Mustafa Oguzhan,
Kafa Suleyman,
Yigit Nevzat
Publication year - 2005
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/s11746-005-1115-0
Subject(s) - bentonite , cottonseed oil , molar ratio , chemistry , differential thermal analysis , cottonseed , fourier transform infrared spectroscopy , nuclear chemistry , chemical engineering , materials science , organic chemistry , food science , catalysis , physics , optics , diffraction , engineering
In this study, Al‐pillared white bentonite (Ordu‐Unye, Turkey) was used for cottonseed oil bleaching. Pillaring process parameters were optimized in terms of bleaching efficiency as the bleaching capacity of cottonseed oil. The initial cation concentration, hydrolyzing agent ratio, and thermal treatment temperature were chosen as major process parameters. Pillared clays were characterized by FTIR and differential thermal analysis. The bleaching efficiency of bentonite increased from 11.8 to 17.5% by acid activation and to 33.5% by further Al pillaring. The optimal pillaring process conditions for cottonseed bleaching were an initial concentration of AICl 3 , of 0.5 M, a OH − /Al 3+ molar ratio of 0.3, and a thermal treatment temperature of 700°C.