Microporous Pillared Mica with Cation-incorporated Silicate Surfaces

  • Kazuo Urabe
  • Hiroaki Sakurai
  • Kazuki Kawabe
  • Yusuke Izumi

Abstract

The interlayer cations, such as La3+ and Ca2+, were irreversibly fixed by heating onto the exchange sites of silicate layer in fluor-tetrasilicic mica (TSM) as an expandable synthetic mica, which has a large layer charge and octahedral vacancies. The microporous pillared mica was prepared by the subsequent cation exchange of ’Al13’ Keggin ion. The resulting compounds worked as efficient solid acid catalysts and their catalytic activities varied widely, depending on the type of modifying cations. The fixation mode was classified into five groups by the size and valence of the modifying cations. The fixation of Ca2+ did not occur on other clays such as montmorillonite and taeniolite.

Keywords

Clay Depression Silicate Zeolite Toluene 

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Copyright information

© Springer Science+Business Media New York 1992

Authors and Affiliations

  • Kazuo Urabe
    • 1
  • Hiroaki Sakurai
    • 1
  • Kazuki Kawabe
    • 1
  • Yusuke Izumi
    • 1
  1. 1.Nagoya UniversityJapan

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