| abstract |
A process for preparing a material comprising agglomerated particles of precipitated silica, comprising preparing a solution of at least two metal salts (Me), wherein the metal ions are divalent or polyhydric. A solution of alkali metal (M) silicate having a molar ratio of SiO2 / M2O of 1-4 is prepared. The solutions are mixed and the mixture is stirred, forming an instant coagulate. The coagulate is rinsed, collected, dewatered, impregnated and processed into a material with a solids content of> 75%, preferably> 97%. A material prepared by the process is also disclosed. |