Compositions: ceramic – Ceramic compositions – Devitrified glass-ceramics
Patent
1987-09-24
1989-10-03
Dixon, Jr., William R.
Compositions: ceramic
Ceramic compositions
Devitrified glass-ceramics
501 12, 501 39, 501118, 501119, 501 80, 502527, C04B 3808
Patent
active
048716936
ABSTRACT:
New type porous cordierite ceramics having a new characteristic interconnecting open cellular structure and a hollow microspherical cordierite glass powder with a shell devoid of any pores or provided with a few or an abundance of open pores which is used as a starting material for the porous cordierite ceramics. The porous cordierite ceramics are produced by subjecting a starting solution containing an alkyl silicate, an aluminum salt and an magnesium salt optionally with other compounds in an organic or aqueous organic solvent to spray thermal decomposition to prepare the hollow microspherical cordierite glass powder, and then processing the cordierite glass powder to a shaped body after or before an optional heat treatment and firing the shaped body at a temperature below the melting point of cordierite. The porous cordierite ceramics are useful as a carrier for gas chromatography or various chemical reactions.
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Inoue Senya
Kobayashi Mikio
Ono Akira
Yokoo Hiroshi
Dixon Jr. William R.
Group Karl
Kanto Kagaku Kabushiki Kaisha
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