Method for refining molten glass

US6698244B1 · kind B1 · utility

Assignee

• Schott Glas · DE

Inventors

• Hildegard Römer · Karben, DE
• Werner Kiefer · Ingelheim am Rhein, DE
• Detlef Köpsel · Mainz, DE
• Peter Nass · Mainz, DE
• Erich Rodek · Mainz, DE
• Uwe Kolberg · Mainz, DE
• Thomas Pfeiffer · Kumhausen, DE

Key dates

• Filing date: Aug 18, 2000
• Grant date: Mar 2, 2004
• Expiry date: Nov 30, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C03C3/085
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

The invention describes a method for refining molten glass materials, in which refining gas is generated by refining agents in the molten glass, and in which the molten glass is heated to a temperature of between 1650° C. and 2800° C., and the maximum release of refining gas by the refining agents takes place at over 1500° C.