Method of calcining minerals containing heat-value components

US4496313A · kind A · utility

Assignee

• BKMI Industrieanlagen GmbH · DE

Inventors

• Wolfram Quittkat · Gauting, DE
• Gerhard Reuter · Ismaning, DE
• Rudiger Schmidt · Munich, DE

Key dates

• Filing date: Sep 24, 1982
• Grant date: Jan 29, 1985
• Expiry date: Sep 24, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C04B2/108
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method of calcining mineral components such as bituminous limestone in which heat is recovered from the calcining process and is used to liberate volatilizable substances within the mineral matter before the latter is subjected to calcination. The volatilized and pyrolytically decomposed substances form a fuel which is burned to produce the calcining gas mixture.