Process for reducing fume emissions during molten metal...

Details Process for reducing fume emissions during molten metal... Process for reducing fume emissions during molten metal...

C - Chemistry, Metallurgy

21

C

C21C 7/00 (2006.01) B22D 45/00 (2006.01) C21B 7/14 (2006.01) C21C 1/06 (2006.01)

Patent

CA 2270949

A process for reducing fume, dust and/or smoke emission in transferring molten metal, entailing: a) blanketing molten metal, preferably steel or iron with, at least, solid carbon dioxide; and b) allowing the carbon dioxide to sublime, thereby restricting free air access to the molten metal, and reducing fume, dust and/or smoke emission therefrom.

L'invention concerne un procédé pour limiter les émanations de vapeur, de poussière et/ou de fumée pendant un transfert de métal liquide. Ledit procédé consiste à: a) recouvrir le métal liquide, de préférence de l'acier ou du fer, avec au moins un dioxyde de carbone solide; et b) à laisser sublimer le dioxyde de carbone, ce qui permet de limiter l'accès de l'air libre au métal liquide et de diminuer les émanations de vapeur, de poussière et/ou de fumée dudit métal liquide.

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