Method for separating non-ferrous metals from iron-containing materials

US4447261A · kind A · utility

Assignee

• Klockner-Humboldt-Deutz AG · DE

Inventors

• Hermann Hilbrans · Langenfeld, DE
• Chatty Rao · Bensberg, DE

Key dates

• Filing date: Nov 10, 1981
• Grant date: May 8, 1984
• Expiry date: Nov 10, 2001

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S75/961
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A method for separating non-ferrous metals from an iron-containing waste material which includes providing separate contiguous layers of the waste material and a sintering mixture containing a finely divided carbonaceous fuel, passing hot combustion supporting gases, first through the layer of sintering mixture and then through the layer of waste material in a sintering zone under conditions sufficient to sinter the iron containing constituents, and volatilizing off the non-ferrous metals to produce a charge suitable for feeding to a blast furnace.