Abstract: A process of preparing precipitated silica is disclosed. Said process comprises of reacting an aqueous solution of a metal silicate with a mineral acid in the presence of a surfactant solution comprising gelatin and C8-C20 sulfosuccinate blend, at a reaction temperature in a range of about 70 to 100° C. with constant stirring such that a reaction mixture having a pH of about 10·0.3 is obtained; optionally, allowing the reaction mixture to age at a temperature in a range of about 70 to 100° C. for a time period in range of 10 to 100 minutes; adjusting the pH of the reaction mixture to about 4, followed by aging said mixture at a temperature in a range of about 70 to 100° C. for a time period in a range of 10 minutes to 2 hours; and recovering the precipitated silica from the reaction mixture.

Abstract: A precipitated silica is disclosed. Said precipitated silica has a BET/CTAB in a range of 0.8-1.35; a DBP oil absorption in a range of 240-320 ml/100 g; and a CDBP coefficient (DA) in range of 0.65 to 0.9. The precipitated silica has a micro pore area ranging from 6 to 35 m2/g and a micro pore volume ranging from 0.01 to 0.06 cm3/g.

Abstract: A precipitated silica is disclosed. Said precipitated silica has a BET/CTAB in a range of 0.8-1.35; a DBP oil absorption in a range of 240-320 ml/100 g; and a CDBP coefficient (DA) in range of 0.4 to 0.9.

Abstract: A process of preparing precipitated silica is disclosed. Said process comprises of reacting an aqueous solution of a metal silicate with a mineral acid in the presence of a surfactant solution comprising gelatin and C8-C20 sulfosuccinate blend, at a reaction temperature in a range of about 70 to 100° C. with constant stirring such that a reaction mixture having a pH of about 10·0.3 is obtained; optionally, allowing the reaction mixture to age at a temperature in a range of about 70 to 100° C. for a time period in range of 10 to 100 minutes; adjusting the pH of the reaction mixture to about 4, followed by aging said mixture at a temperature in a range of about 70 to 100° C. for a time period in a range of 10 minutes to 2 hours; and recovering the precipitated silica from the reaction mixture.