Process for producing granular, fire-resistant material

US4436680A · kind A · utility

Assignee

• Didier-Werke AG · DE

Inventors

• Axel Eschner · Wiesbaden, DE
• Rudolf Ganz · Overath, DE
• Gunter Tkotz · Wiesbaden, DE
• Hermann Stein · Taunusstein, DE
• Klaus Kreuels · Eltville am Rhein, DE

Key dates

• Filing date: Feb 16, 1982
• Grant date: Mar 13, 1984
• Expiry date: Feb 16, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B28/344
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Granular, fire-resistant material, use thereof and process for its production, which process comprises mixing ceramic fibers, a refractory material such as clay, a phosphate bonding agent and water, to form a substantially uniformly dispersed mixture, compacting the mixture by a volume coefficient of at least 3, subjecting the compacted mixture to heat-treatment, and granulating the thus heated product.