A novel molecular sieve composition emm-12, a method of...

C - Chemistry – Metallurgy – 01 – B

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C01B 39/46 (2006.01) B01J 29/06 (2006.01) C01B 39/48 (2006.01)

Patent

CA 2729265

This disclosure relates to an EMM- 12 molecular sieve having, in its as- synthesized form and in calcined form, an X-ray diffraction pattern including peaks having a d-spacing maximum in the range of 14.17 to 12.57 Angstroms, a d-spacing maximum in the range of 12.1 to 12.56 Angstroms, and non-discrete scattering between about 8.85 to 11.05 Angstroms or exhibit a valley in between the peaks having a d-spacing maximum in the range of 10.14 to 12.0 Angstroms and a d-spacing maximum in the range from 8.66 to 10.13 Angstroms with measured intensity corrected for background at the lowest point being not less than 50 % of the point at the same XRD d-spacing on the line connecting maxima in the range of 10.14 to 12.0 Angstroms and in the range from 8.66 to 10.13 Angstroms.

Cette invention concerne un tamis moléculaire EMM-12 comportant, dans sa forme synthétisée et dans sa forme calcinée, un diagramme de diffraction de rayons X comprenant des pics d'un espacement d maximal compris entre 14,17 et 12,57 angströms, un espacement d maximal compris entre 12,1 et 12,56 angströms, et une diffusion non discrète comprise entre environ 8,85 et 11,05 angströms, ou présente une vallée entre les pics ayant un espacement d maximal compris entre 10,14 et 12,0 angströms et un espacement d maximal compris entre 8,66 et 10,13 angströms avec une mesure d'intensité corrigée pour l'arrière-plan au point le plus bas non inférieure à 50 % du point au même espacement d XRD sur la courbe reliant les maxima dans la gamme de 10,14 à 12,0 angströms et dans la gamme de 8,66 et 10,13 angströms.

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