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EP0196949A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Crystallized bulky aluminosilicate with a foamed structure, and process for making it

Assignee: Centre National de la Recherche Scientifique
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Filing: 1986-03-10
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Granted: —
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Expires: 2006-03-10
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Abstract

Abstract Translated from French La présente invention concerne un nouveau aluminosilicate massif cristallisé à structure expansée et son procédé de fabrication. The present invention relates to a new solid crystalline aluminosilicate with expanded structure and its manufacturing process. La structure particulière à pores fermés contenant de l'azote est obtenue par : broyage de verre industriel; addition de nitrure à base d'aluminium à raison de 0,1 à 20 % en masse par rapport à la masse du broyat de verre industriel; mélange du broyat et du nitrure ainsi additionné; oxydation du nitrure au sein dudit mélange par chauffage à une température de 800 à 1000°C, pendant environ 1 heure, et refroidissement et récupération de l'aluminosilicate cristallisé expansé. The particular closed-pore structure containing nitrogen is obtained by: industrial glass grinding; addition of aluminum nitride in an amount of 0.1 to 20% by mass relative to the mass of the industrial glass ground product; mixing the ground material and the nitride thus added; oxidation of the nitride within said mixture by heating at a temperature of 800 to 1000 ° C, for about 1 hour, and cooling and recovery of expanded crystallized aluminosilicate.

Inventors

  • 👤 Yves Laurent
  • 👤 Patrick Verdier
  • 👤 Jean Guyader

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 14:58
CPC Classifications
C; C04; C04B; C04B38/00; C04B38/02; C03; C03C; C03C11/00; C03C11/007

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

LU79661A1 Cited
EP0041003A1 Cited

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