PRODUCTION OF POWDERY SYNTHETIC QUARTZ

PRODUCTION OF POWDERY SYNTHETIC QUARTZ

PROBLEM TO BE SOLVED: To intend to efficiently produce powdery synthetic quartz generating little bubbles in melt molding of the quartz. SOLUTION: This production of powdery synthetic quartz is to continuously feed powdery silica gel from one end of a rotary kiln, heat treat the silica gel in fluidi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SUGURO YOSHIO, OISHI SHOJI, SHIMOYAMA MASARU
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To intend to efficiently produce powdery synthetic quartz generating little bubbles in melt molding of the quartz. SOLUTION: This production of powdery synthetic quartz is to continuously feed powdery silica gel from one end of a rotary kiln, heat treat the silica gel in fluidizing and control heat supply so that a zone length having 300-430 deg.C powder temperature in the rotary kiln will be >=5cm and