BOEHMITIC ALUMINAS, AND HIGH-TEMPERATURE STABILE AND HIGHLY POROUS ALUMINUM OXIDES IN A PURE PHASE WHICH ARE OBTAINED THEREFROM

摘要

the subject of the invention are crystalline bu00f6hmitische tonerden, whose unusual differences in the dimensions of the raumrichtungen 020 and 120 and a process for their manufacture and the calcinieren available derivatives containing each metal or non-metallic oxides or hydrated oxides of., titans, lanthans and / or bors.