Method of producing clay activated/calcined with calcium aluminoferrite or calcium ferrite and clay composition obtained by the method
AssigneeFct Holdings Pty Ltd
InventorsPedro LUCAS GERVASIO LADEIRA, Adriano BARROS GRECO
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Abstract
The present invention patent refers to a method of obtaining a clay composition activated/calcined with a fraction of calcium aluminoferrite or calcium ferrite and clay composition obtained by the aforementioned method, more precisely belonging to the field of industrial cement manufacturing, where said method discloses a process of forming calcium aluminoferrite or calcium ferrite in-situ to deliver an activated/calcined clay from red clay that is most appreciated for adding to a cement composition.
Claims5
-4. (canceled)
A method of producing clay activated/calcined with calcium aluminoferrite or calcium ferrite and clay composition comprising:
- obtaining calcium aluminoferrite or calcium ferrite in-situ to change the color of the red clay during calcination in a clay oven activated/calcined at a temperature over 900° C. for approximately 45-90 minutes in counterflow to exhaust gases;
- said calcined red clay being acceptable to be added to cement.
Dependencies are inferred from the claim text.