Method for processing solid or molten materials

Details Method for processing solid or molten materials Method for processing solid or molten materials

C - Chemistry, Metallurgy

22

B

C22B 5/10 (2006.01) C21C 5/54 (2006.01) C22B 7/00 (2006.01) C22B 7/02 (2006.01) C22B 7/04 (2006.01)

Patent

CA 2735009

In a method for processing and/or reducing solid or molten materials and/or pyrophoric materials, in particular shredder light fractions, the solid or molten materials are charged onto an at least partially inductively heated graphite body, wherein reducing agents different from the carbon of the graphite are introduced, the flowing-off reduced and/or degassed melt is collected, wherein the reducing agents are introduced together with the solid or molten charging materials, and, as said reducing agents, natural gas, hydrocarbons, hydrogen, carbon monoxide and/or ammonia are introduced along with water vapor, oxygen, carbon dioxide and/or halogens or hydrogen halides. (Fig.1)

Linvention concerne un procédé de traitement ou de réduction de matières solides ou de matières liquides à létat fondu et/ou de pyrophores, en particulier de fractions légères de shredder, procédé selon lequel lesdites matières solides, ou liquides à létat fondu, sont chargées sur un corps en graphite, chauffé au moins partiellement par induction, caractérisé en ce quon introduit des agents réducteurs différents du carbone du graphite, en ce quon rassemble la masse fondue réduite et/ou dégazée qui sécoule, en ce que les agents réducteurs sont introduits conjointement avec les matières de charge solides ou liquides à létat fondu, et en ce quon ajoute, comme agents réducteurs, du gaz naturel, des hydrocarbures, de lhydrogène, du monoxyde de carbone et/ou de lammoniac, conjointement avec de la vapeur deau, de loxygène, du CO2 et/ou des halogènes ou des hydracides halogénés.

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