New precipitated silica with a morphological improved, for its preparation and application, in particular as a charge

摘要

A precipitated silica having improved morphological characteristics and a process for making precipitated silica. In the precipitated silica of the present invention, the ratio of DBP oil index/CTAB specific surface area is between: 7 and 4 for a range of CTAB of between 50-100 m2/g, 4 and 2.5 for a range of CTAB of between 100-200 m2/g, 2.5 and 2 for a range of CTAB of between 200-250 m2/g, 2 and 1.5 for a range of CTAB of between 250-300 m2/g, and 1.5 and 1.2 for a range of CTAB of between 300-350 m2/g.