Method of producing foamed slag

Details Method of producing foamed slag Method of producing foamed slag

C - Chemistry, Metallurgy

21

C

C21C 5/52 (2006.01) C21C 5/54 (2006.01)

Patent

CA 2370397

The invention relates to a method of producing foamed slag in an arc furnace. According to the inventive method, the foamed slag is produced by the metered injection of a carbon carrier by means of an oxygen carrier into the barrier layer between the slag layer and the molten metal. In order improve the protective function of the foamed slag, a particulate titanium carrier is additionally injected.

La présente invention concerne la préparation de laitier expansé dans un four à arc, par injection régulée d'un porteur de carbone au moyen d'un porteur d'oxygène dans la couche intermédiaire située entre la couche de laitier et le métal fondu. Pour améliorer la fonction de protection du laitier expansé, on injecte en plus un porteur de titane sous forme de fines particules.

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