C - Chemistry – Metallurgy – 01 – F
Patent
C - Chemistry, Metallurgy
01
F
C01F 7/02 (2006.01) B01J 20/08 (2006.01) B01J 21/04 (2006.01) B01J 35/10 (2006.01)
Patent
CA 2381411
The present invention pertains to a micro-crystalline beohmite containing additive in a homogeneously dispersed state. Suitable additives are compounds containing elements selected from the group of alkaline earth metals, alkaline metals, rare earth metals, transition metals, actinides, silicon, gallium, boron, titanium, and phosphorus. Said MCBs according to the invention may be prepared in several ways. In general, a micro-crystalline boehmite precursor and an additive are converted to a micro-crystalline boehmite containing the additive in a homogeneously dispersed state. Also claimed are shaped particles and catalyst compositions comprising the as-prepared micro-crystalline boehmite.
La présente invention concerne une boehmite microcristalline dans un état dispersé homogène. Les additifs qui conviennent sont des composés contenant des éléments sélectionnés dans le groupe des métaux alcalino-terreux, des métaux alcalins, des métaux des terreux rares, des métaux de transition, des actinides, du silicium, du gallium, du bore, du titane, et du phosphore. Lesdites boehmites microcristallines peuvent, selon l'invention, être préparées de diverses manières. En général, un précurseur de boehmite microcristalline et un additif sont transformés en une boehmite microcristalline contenant l'additif dans un état dispersé homogène. L'invention concerne également des particules façonnées et des compositions de catalyseurs renfermant ces boehmites microcristallines ainsi préparées.
Jones William
O'conner Paul
Pearson Gregory
Stamires Dennis
Akzo Nobel Nv
Albemarle Netherlands B.v.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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