Quasi-crystalline boehmites containing additives

C - Chemistry – Metallurgy – 01 – F

Patent

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C01F 7/02 (2006.01) B01J 21/04 (2006.01) B01J 35/10 (2006.01)

Patent

CA 2381410

The present invention pertains to a quasi-crystalline boehmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group of alkaline earth metals, alkaline metals, transition metals, actinides, silicon, gallium, boron, titanium and phosphorus. Said QCBs according to the invention may be prepared in several ways. In general, a quasi-crystalline boehmite precursor and an additive are converted to a quasi-crystalline boehmite containing the additive in a homogeneously dispersed state.

La présente invention concerne une boehmite quasi-cristalline contenant un additif dispersé de manière homogène. Les additifs appropriés sont des composés contenant des éléments choisis dans le groupe constitué par des métaux alcalino-terreux, des métaux alcalins, des métaux de transition, des actinides, du silicium, du gallium, du bore, du titane et du phosphore. Selon l'invention, il existe plusieurs façons de préparer ces boehmites quasi-cristallines. Généralement, un précurseur de boehmite quasi-cristalline et un additif sont convertis en boehmite quasi-cristalline contenant cet additif dispersé de manière homogène.

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