Process for the Production of Glass-Monoliths by Means of the Sol-Gel Process

Method for fabricating a glass-monolith by the sol-gel process, in which a pyrogenically produced silica (fumed silica) is used in the form of a powder and/or a dispersion, characterized in that as pyrogenically produced silica (fumed silica) a silica (fumed silica) deriving from the group highly pu...

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Bibliographische Detailangaben
Hauptverfasser:	OSWALD MONIKA, DELLER KLAUS
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS GLASS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE
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Beschreibung
Zusammenfassung:	Method for fabricating a glass-monolith by the sol-gel process, in which a pyrogenically produced silica (fumed silica) is used in the form of a powder and/or a dispersion, characterized in that as pyrogenically produced silica (fumed silica) a silica (fumed silica) deriving from the group highly pure, pyrogenically produced silica (fumed silica) with a metal content of lower than 9 ppm and/or a pyrogenically prepared silicon dioxide powder having-a BET surface area of 30 to 90 m2/g, -a DBP number of 80 or less, an average aggregate area of less than 25,000 nm2, an average aggregate circumference of less than 1,000 nm, at least 70% of the aggregates having a circumference of less than 1,300 nm is used.