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Al-Pillared clay for cottonseed oil bleaching: An optimization study

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Journal of the American Oil Chemists' Society

Abstract

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 AICl3, of 0.5 M, a OH−/Al3+ molar ratio of 0.3, and a thermal treatment temperature of 700°C.

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Authors and Affiliations

  1. Chemical Engineering Department, Cumhuriyet University, 58140, Sivas, Turkey

    Mustafa Oguzhan Caglayan, Suleyman Kafa & Nevzat Yigit

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  1. Mustafa Oguzhan Caglayan
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  2. Suleyman Kafa
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  3. Nevzat Yigit
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Correspondence to Mustafa Oguzhan Caglayan.

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Caglayan, M.O., Kafa, S. & Yigit, N. Al-Pillared clay for cottonseed oil bleaching: An optimization study. J Amer Oil Chem Soc 82, 599–602 (2005). https://doi.org/10.1007/s11746-005-1115-0

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  • DOI: https://doi.org/10.1007/s11746-005-1115-0

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