PRODUCTION OF GLASS RAW MATERIAL FROM BLAST FURNACE SLAG

PURPOSE:To readily obtain a glass raw material from blast furnace slag without containing harmful impurities, by jetting pressurized water on molten blast furnace slag, producing a granulated slag, applying a gravity concentration means and removing impurities harmful to the glass raw material. CONS...

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Bibliographische Detailangaben
Hauptverfasser:	SEKI AKIRA, NARITA SUKEYOSHI, MITA MINORU, IEMURA TOYOJI, FUJISAWA TSUNEO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS CHEMISTRY GLASS JOINING GLASS TO GLASS OR OTHER MATERIALS MANUFACTURE OF IRON OR STEEL METALLURGY METALLURGY OF IRON MINERAL OR SLAG WOOL SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS SURFACE TREATMENT OF GLASS
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Beschreibung
Zusammenfassung:	PURPOSE:To readily obtain a glass raw material from blast furnace slag without containing harmful impurities, by jetting pressurized water on molten blast furnace slag, producing a granulated slag, applying a gravity concentration means and removing impurities harmful to the glass raw material. CONSTITUTION:Pressurized water is jetted on molten blast furnace slag to produce a granulated slag, which is then subjected to gravity concentration treatment by using a dry or wet gravity concentration device to remove impurities, such as iron or corundum, harmful to a glass raw material. Thereby the aimed glass raw material is produced from the blast furnace slag. Furthermore, removal of iron can be more surely carried out by subjecting the granulated slag to magnetic separating operation before or after the gravity concentration treatment.