Highly siliceous porous crystalline material
AssigneeMobil Oil Corporation
InventorsFrancis G. Dwyer, Ernest W. Valyocsik
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Abstract
A new zeolite, designated ZSM-22, is disclosed and claimed. The new zeolite has the composition, in the anhydrous state, expressed in terms of mole ratios of oxides as follows: (x)Q.sub.2 O:(y)M.sub.2/n O:(z)L.sub.2 O.sub.3 :100SiO.sub.2 wherein Q.sub.2 O is the oxide form of an organic compound, M is an alkali or alkaline earth metal having a valence n, e.g., Na, K, Cs or Li and wherein x=0-2.0, y=0-2.0, z=0-5, and L=Al. Also disclosed are methods of preparing ZSM-22, e.g., with an alkane diamine directing agent, and uses of ZSM-22 as catalysts, e.g., in hydrocarbon conversion reactions.
Claims12
A siliceous porous crystalline ZSM-22 zeolite material having a composition, expressed in terms of moles of anhydrous oxides, as follows comprising:
- (y)M.sub.2/n O:
- (z)L.sub.2 O.sub.3 :
- 100SiO.sub.2
- wherein M is an alkali or alkaline earth metal having a valence n, y=0 to 2.0, z=0 to 5, and L is aluminum (Al), and having an X-ray diffraction pattern of Table I.
A zeolite material obtained by ion exchanging alkali or alkaline earth metal from the ZSM-22 material of claim 60.
A siliceous porous crystalline ZSM-22 zeolite material having a framework composition, expressed in terms of moles of oxides, as follows:
- (z)Al.sub.2 O.sub.3 :100SiO.sub.2
- wherein z=0 to 5, and having an X-ray diffraction pattern of Table I.
Dependencies are inferred from the claim text.