Crystalline zeolite ZSM-20 and method of preparing same
AssigneeMobil Oil Corporation
InventorJulius Ciric
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Abstract
A new crystalline zeolite, designated ZSM-20, a method of making same and the use thereof in catalytic conversion of organic compounds, e.g. hydrocarbons, is the subject of this application. The new zeolite has a composition expressed in terms of mole ratios of oxides in the anhydrous state as follows: (0.3 - 0.6)R.sub.2 O: (0.4 - 0.7)M.sub.2 O: Al.sub.2 O.sub.3 :(x)SiO.sub.2 wherein R is a tetraethylammonium cation, M is an alkali metal cation and x is at least 7, and is characterized by a specified X-ray powder diffraction pattern.
Claims11
A synthetic crystalline aluminosilicate zeolite having a composition expressed in terms of mole ratios of oxides in the anhydrous state as follows:
- (0.3-0.6)R.sub.2 O;
- (0.4-0.7)M.sub.2 O:
- Al.sub.2 O.sub.3 :
- (x)SiO.sub.2
- wherein R is a tetraethylammonium cation, M is an alkali metal cation and x is at least 7, and having an X-ray powder diffraction pattern which shows the significant lines set forth in Table 1 of the specification.
Dependencies are inferred from the claim text.