Ceramic Porous Elements for Filtration of Gases and Related Applications

  • J. Pavlu Carborundum Electrite Ltd., Ben·tky nad Jizerou,
  • J. Kudova J. Heyrovsk. Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague,
  • A. Zikanova J. Heyrovsk. Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague,
  • M. Kocirik J. Heyrovsk. Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague,
  • P. Uchytil Institute of Chemical Processes, Academy of Sciences of the Czech Republic, Prague,
  • O. Solcova Institute of Chemical Processes, Academy of Sciences of the Czech Republic, Prague,
  • J. Rocek Institute of Chemical Processes, Academy of Sciences of the Czech Republic, Prague,
  • V. Fila Department of Inorganic Technology, Institute of Chemical Technology, Prague
  • B. Bernauer Department of Inorganic Technology, Institute of Chemical Technology, Prague
  • V. Krystl Department of Inorganic Technology, Institute of Chemical Technology, Prague
  • P. Hrabanek Department of Inorganic Technology, Institute of Chemical Technology, Prague

Abstrakt

A technology was developed for preparation of low-cost ceramic filtration elements in the form of disks, 20 and 25 mm in diameter. The material ofthe elements is based on fused α-alumina as well as ceramic and glaze binders. The lateral parts are hermetized with a glaze. High reproducibility of porous structure characteristics is due to uniaxial pressing of the elements. The basic porous element with a mean pore size of 12 µm can be used, e.g., to remove solid aerosols from gas streams and thus to protect sensitive devices. Asymmetric porous elements are prepared by building a thin ceramic layer off ine ?-alumina powder on the basic porous element. These two-layer elements can be used as supports for preparation of inorganic membranes and in other technologies.
Publikované
2004-02-15
Jak citovat
[1]
Pavlu, J., Kudova, J., Zikanova, A., Kocirik, M., Uchytil, P., Solcova, O., Rocek, J., Fila, V., Bernauer, B., Krystl, V. a Hrabanek, P. 2004. Ceramic Porous Elements for Filtration of Gases and Related Applications. Chemické listy. 98, 1 (úno. 2004).
Sekce
Články