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1. (WO2018224944) SYNTHESIS OF SFE FRAMEWORK TYPE MOLECULAR SIEVES
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CLAIMS

1. A method of synthesizing a molecular sieve of SFE framework type, the method comprising:

(a) preparing a reaction mixture comprising:

(1) a source of silicon oxide;

(2) a source of an oxide of a trivalent element (X);

(3) optionally, a source of a Group 1 or Group 2 metal (M);

(4) a structure directing agent (Q) comprising one or more of 1,2,3,5-tetramethyl-1/-/-pyrazol-2-ium cations and 1,2,3,4-tetramethyl-1 /-/-imidazol-3-ium cations;

(5) hydroxide ions; and

(6) water; and

(b) subjecting the reaction mixture to crystallization conditions sufficient to form crystals of the molecular sieve.

2. The method of claim 1, wherein the reaction mixture has a composition, in terms of molar ratios, as follows:


3. The method of claim 1, wherein the reaction mixture has a composition, in terms of molar ratios, as follows:


4. The method of claim 1, wherein the trivalent element X is selected from one or more of boron, aluminum, gallium, and iron.

5. The method of claim 1, wherein the trivalent element X comprises boron.

6. The method of claim 1, wherein the reaction mixture also contains seeds.

7. The method of claim 6, wherein the reaction mixture comprises from 0.01 to 10,000 ppm by weight of seeds.

8. The method of claim 6, wherein the seeds comprise a crystalline material of SFE framework type.

9. The method of claim 1, wherein the crystallization conditions include a temperature of from 125°C to 200°C.

10. A molecular sieve of SFE framework type and, in its as-synthesized form, comprising one or more of 1,2,3,5-tetramethyl-1 /-/-pyrazol-2-ium cations and 1,2,3,4-tetramethyl-1/-/-imidazol-3-ium cations in its pores.

1 1. The molecular sieve of claim 10, and having a S1O2/X2O3 molar ratio of 20 to 300, wherein X is selected from one or more of boron, aluminum, gallium, and iron.

12. The molecular sieve of claim 1 1, wherein X comprises boron.