Method for fractional crystallisation of a metal

Details Method for fractional crystallisation of a metal Method for fractional crystallisation of a metal

C - Chemistry, Metallurgy

22

B

C22B 9/02 (2006.01) B22D 30/00 (2006.01) C22B 21/06 (2006.01)

Patent

CA 2491645

The invention relates to a method for fractional crystallisation of an at most partially solidified molten metal, in which a layer of at most partially solidified molten metal having an upper surface und a lower surface is divided into a series of compartments communicating with each other, in which the metal is stirred in at least some of the compartments, und in which crystals formed und/or existing in the layer of metal are selectively transported in a predetermined direction und molten metal is selectively transported in the opposite direction.

L'invention concerne un procédé de cristallisation fractionnelle d'un métal fondu au moins partiellement solidifié. Selon ce procédé, une couche dudit métal dotée de couches supérieure et inférieure est divisée en une série de compartiments communiquant entre eux, le métal est étiré dans au moins certains des compartiments, et des cristaux formés et/ou sortant dans la couche de métal sont acheminés sélectivement dans un sens prédéterminé et le métal fondu est transporté sélectivement dans le sens opposé.

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