Abstract: Process for the manufacturing of silicas having a specific surface area ranging between 100 and 600 sq m/g, which does not vary upon drying, due to the action of a strong acid on an alkaline silicate, characterized by the fact that the addition of strong acid to the alkaline silicate is interrupted one to three times.
January 24, 1979
Date of Patent:
January 6, 1981
Jean-Baptise Donnet, Bernard Baudru, Maurice Coudurier, Georges Vrisakis