PROCESS FOR THE PREPARATION OF A CONTROLLED POROSITY-BASED GEOPOLYMER, THE GEOPOLYMER THUS OBTAINED AND ITS DIFFERENT APPLICATIONS

摘要

The present invention relates to a process for the preparation of a geopolymer with controlled porosity comprising a step of dissolution / polycondensation of an aluminosilicate source in an activating solution that may optionally contain silicate components, characterized in that it comprises a a step of selecting a predetermined value or element for at least one parameter selected from the total amount of water, the total amount of silica, the compensation cation and the particle size distribution of any silicate components. The present invention relates to a geopolymer capable of being prepared by said method and having a mesoporosity or a monomodal macroporosity and more or less extended pore distribution as well as the various uses of said geopolymer.