Zeolite SSZ-35
AssigneeChevron Research and Technology Company
InventorYumi Nakagawa
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Abstract
The present invention relates to new crystalline zeolite SSZ-35 prepared by processes for preparing crystalline molecular sieves, particularly large pore zeolites, using conformationally constrained aza-polycyclic ring system templating agents.
Claims22
A zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, titanium oxide, boron oxide and mixtures thereof greater than about 15 and having the X-ray diffraction lines of Table II.
A zeolite having an average pore size diameter greater than about 6 Angstroms and having the X-ray diffraction lines of Table II.
A zeolite prepared by thermally treating a zeolite having a composition, as synthesized and in the anhydrous state, in terms of mole ratios as follows:
- ______________________________________ YO.sub.2 /W.sub.2 O.sub.3 15 or greater O/YO.sub.2 0.01 to 0.10 M+/YO.sub.2 less than 0.5 ______________________________________
- wherein O is a polycyclic ring system cation having a quaternary nitrogen heteroatom, M is an alkali metal cation, W is selected from the group aluminum, gallium, iron, titanium, boron, and mixtures thereof, and Y is selected from the group consisting of silicon, germanium, and mixtures thereof, at a temperature of from about 200.degree. C. to about 800.degree. C., said zeolite having the x-ray diffraction lines of Table III.
A zeolite having a mole ratio of an oxide selected from silicon oxide, germanium oxide and mixtures thereof to an oxide selected from aluminum oxide, gallium oxide, iron oxide, titanium oxide, boron oxide and mixtures thereof greater than about 15 and having the X-ray diffraction lines of Table III.
Dependencies are inferred from the claim text.