Material comprising a silica shaped by extrusion with a phosphopotassium or cesium phosphate binder and having improved mechanical properties, and process for the preparation thereof

Abstract

The invention relates to a novel material based on potassium phosphate salt or caesium phosphate salt and silica, comprising at least one source of silica formed into shape with at least one powder of a potassium phosphate salt or caesium phosphate salt. The invention also relates to a process for preparing said material, comprising at least one step of mixing at least one powder of at least one source of silica with at least one powder of at least one potassium phosphate or caesium phosphate salt and at least one solvent, a step of forming into shape preferably by extrusion of the mixture obtained on conclusion of the mixing step and a step of preparing calcined extrudates and optionally a final hydrothermal treatment step.

Dependencies are inferred from the claim text.