公开(公告)号：EP4238950A1

公开(公告)日：2023-09-06

申请号：EP20958922.5

申请日：2020-10-27

申请人： FCT Holdings Pty Ltd

发明人： LUCAS GERVASIO LADEIRA, Pedro ,  BARROS GRECO, Adriano

IPC分类号： C04B33/04 ,  C04B40/00 ,  C04B28/22

摘要： The present patent of invention relates to a method for preparing a composition of activated/calcined clay with a calcium aluminoferrite or calcium ferrite fraction, and to a clay composition prepared by said method, pertaining more precisely to the field of the industrial production of cements, said method disclosing a process for the in-situ formation of calcium aluminoferrite or calcium ferrite in order to obtain, from red clay, an activated/calcined clay which is more attractive for addition to a cement composition.