Process for high free lime content in cement clinker

Details Process for high free lime content in cement clinker Process for high free lime content in cement clinker

C - Chemistry, Metallurgy

04

B

C04B 7/36 (2006.01) C04B 7/34 (2006.01) C04B 7/47 (2006.01)

Patent

CA 2189804

A source of free lime is introduced into a cooling zone of a cement kiln in an amount to elevate the free lime content to a content of 0.6 to 2.0%, by weight. This addition is made without altering the normal or standard process operating parameters of the kiln for cement clinker production . The free lime content of 0.6 to 2.0%, by weight, provides advantageous characteristics in cement produced with the cement clinker.

Source de chaux libre introduite dans une zone de refroidissement d'un four à ciment, en quantité suffisante pour élever le contenu de chaux libre à une concentration de 0,6 à 2,0 % en poids. Cette addition est faite sans modifier les paramètres opérationnels du processus normal du four pour la production de ciment non broyé. Une concentration en chaux libre de 0,6 à 2,0 % en poids permet d'obtenir, à partir du ciment non broyé, un ciment démontrant des caractéristiques avantageuses.

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