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US 2010/0304140 A1Published application
Lsx zeolite of controlled particle size
AssigneeCeca S.A.
InventorsLudivine Bouvier, Serge Nicolas, Guy-Henri Durand
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Abstract
The invention relates to a zeolite of the faujasite X type having a low silica content, more precisely a zeolite LSX having a Si/Al atomic ratio lower than or equal to 1.15, having a high crystallinity rate and whereof the crystals have a controlled particle size distribution. The present invention also relates to the method for preparing said zeolite LSX.
Claims12
A LSX type zeolite having a Si/Al atomic ratio lower than or equal to 1.15, preferably equal to 1±0.05, in the form of crystals whereof:
- the particle size distribution determined by SEM counting is monomodal, with a peak width (2σ) lower than 8, preferably lower than 6, even more preferably lower than 4, and ideally lower than 2;
- and
- the mean number diameter measured by scanning electron microscope is higher than 0.1 μm and lower than 10 μm, preferably lower than 4 μm, even more preferably lower than 3 μm.
Dependencies are inferred from the claim text.