Method for manufacturing composite cement
(22) 07.03.2022
(43) 14.06.2023
(57) Method for manufacturing a composite cement comprising the steps providing a cement raw meal, preheating the cement raw meal to provide preheated cement raw meal, precalcination of the preheated cement raw meal to provide precalcined cement raw meal, sintering the precalcined cement raw meal in a rotary kiln to provide the cement clinker, and cooling the cement clinker in a cooler, wherein a zeolite is added with a gas tight valve to the clinker in the cooler at a position where the temperature of the clinker causes a heating of the added zeolite to a temperature in the range from 600 to 800 °C, and composite cement obtained by grinding the cooled clinker and calcined zeolite.
(71) HeidelbergCement Georgia Ltd., 0160 Tbilisi, (GE)
