Process of producing self-supporting briquettes for use in metallurgical processes

US3960543A · kind A · utility

Assignee

• Metallgesellschaft AG · DE

Inventors

• Paul Schmalfeld · Bad Homburg vor der Höhe, DE
• Dieter Sauter · Heubach, DE
• Fred Cappel

Key dates

• Filing date: Jul 1, 1974
• Grant date: Jun 1, 1976
• Expiry date: Jul 1, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C22B1/245
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Self-supporting compact bodies for use in metallurgical processes are made from fine-grained materials containing metal oxides, fine-grained caking coal and optionally other non-caking materials. The non-caking components, e.g., the fine-grained materials and other non-caking materials, are highly heated and mixed with the caking coal and the resulting mixture is briquetted when the coal is in a plastic state. Tar pitch, petroleum bitumen or the like is admixed with the fine-grained caking coal before it is mixed with the highly heated non-caking components. Briquettes formed in this fashion are characterized by improved crushing and abrasive strengths and improved high temperature strength.