| abstract |
The invention relates to a new process for preparing a precipitated silica, in which: - a silicate is reacted with at least one acidifying agent, so as to obtain a suspension of precipitated silica, - said precipitated silica suspension is filtered, in order to obtain a filter cake, - said filter cake is subjected to a disintegration operation comprising the addition of an aluminum compound, - after the disintegration operation, a drying step is carried out, characterized in that methylglutaric acid is added to the filter cake during or after the disintegration process. It is also related to new precipitated silicas and their uses. |