Silanized silica

摘要

Silica with the following physico-chemical properties: - Specific surface m2/g 80-400 - Primary particle size nm 7-40 - Tapped density g/l 50-300 - pH value 3-10 - Carbon content % 0.1-15 - DBP number % <200 - is produced by spraying a silica under intensive mixing, optionally with water or dilute acid at first and then with a surface-modifying reagent or a mixture of several surface-modifying reagents, then mixing, tempering, and subsequently destructuring/compressing and grinding.