PYROGEN HERGESTELLTES SILICIUMDIOXID IN KOMPAKTER FORM ZUR AUSGABE VON KRUSTEN

摘要

Pyrogenically produced silicon dioxide in the form of compact flakes, exhibits a tamped density of 185-700 g/l, according to DIN EN ISO 787-11, is new. An independent claim is included for a method for preparing the silicon dioxide comprising deaerating and/or compressing the pyrogenically obtained silicon dioxide, compacting the mixture into flakes, and breaking and optionally classifying the flakes.