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Adsorption and Surface Area of Modified Bentonite Used as Bleaching Clay

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Characterization of Minerals, Metals, and Materials 2018 (TMS 2018)

Part of the book series: The Minerals, Metals & Materials Series ((MMMS))

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Abstract

The modification of structural clays by chemical processes is a common method. It usually uses strong inorganic acid attacks , aiming at improving the clay’s properties and applications. Among the applications are its use in clay -polymer nanocomposites, cosmetics, medicines, and bleaching clays . Tests using acid attack to modified Brazilian bentonites were successfully performed and, resulted in significant improvement in the clay properties. This paper discusses the use of a Brazilian bentonite modified by acid attack as bleaching clay. The treated bentonite samples were characterized by XRF, specific surface area (BET) and SEM/EDS. The treated clay exhibited improved bleaching capacity for Brazilian nut oil and other Amazonian oils.

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Acknowledgements

This work was supported by the São Paulo State Research Foundation—FAPESP, and by the CNPq—National Council for Scientific and Technological Development.

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Authors and Affiliations

  1. Department of Metallurgical and Materials Engineering, Polytechnic School, University of Sao Paulo, Sao Paulo, SP, Brazil

    C. G. Bastos Andrade, S. M. Toffoli & F. R. Valenzuela Diaz

Authors
  1. C. G. Bastos Andrade
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  2. S. M. Toffoli
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  3. F. R. Valenzuela Diaz
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Corresponding author

Correspondence to C. G. Bastos Andrade .

Editor information

Editors and Affiliations

  1. Michigan Technological University, Houghton, Michigan, USA

    Bowen Li

  2. CanmetMATERIALS, Hamilton, Ontario, Canada

    Jian Li

  3. Al-Isra University, Amman, Jordan

    Shadia Ikhmayies

  4. ArcelorMittal Global R&D, East Chicago, Indiana, USA

    Mingming Zhang

  5. Middle East Technical University, Ankara, Turkey

    Yunus Eren Kalay

  6. Mail Stop G770, Los Alamos National Laboratory, Los Alamos, New Mexico, USA

    John S. Carpenter

  7. Michigan Technological University, Houghton, Michigan, USA

    Jiann-Yang Hwang

  8. Military Institute of Engineering, Rio de Janeiro, Brazil

    Sergio Neves Monteiro

  9. Politecnico di Torino, Turin, Italy

    Donato Firrao

  10. UNSW Canberra, Campbell, ACT, Australia

    Andrew Brown

  11. Chongqing University, Chongqing, China

    Chenguang Bai

  12. Central South University, Changsha, China

    Zhiwei Peng

  13. UNSW Canberra, Campbell, Aust Capital Terr, Australia

    Juan P. Escobedo-Diaz

  14. Naval Research Laboratory, Washington, District of Columbia, USA

    Ramasis Goswami

  15. Korea Railroad Research Institute, Uiwang, Korea (Republic of)

    Jeongguk Kim

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Bastos Andrade, C.G., Toffoli, S.M., Valenzuela Diaz, F.R. (2018). Adsorption and Surface Area of Modified Bentonite Used as Bleaching Clay. In: Li, B., et al. Characterization of Minerals, Metals, and Materials 2018 . TMS 2018. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-319-72484-3_36

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