Process for producing, from aluminous siliceous materials, clinker containing alkali metal aluminate and dicalcium silicate, and use thereof

摘要

Aluminous siliceous starting materials are mixed and ground with correction materials to produce a raw mixture comprising oxides of aluminium, silicon, calcium and alkali metal having certain mole ratios, preheating the raw mixture by suspending the raw mixture in a hot gas, and sintering the preheated material to clinker.