| 摘要 |
The present invention relates to a process for preparing zeolites using quaternary ammonium cations having the following formula as structure directing agents:wherein:</PTEXT>X is -H, methyl, -F, -Cl, -F and -Cl, or methoxy;</PTEXT>R<HIL><PDAT>1 </SB><PDAT>and R<HIL><PDAT>2 </SB><PDAT>are each methyl or ethyl; R<HIL><PDAT>1 </SB><PDAT>and R<HIL><PDAT>2 </SB><PDAT>together are -(CH<HIL><PDAT>2</SB><PDAT>)<HIL><PDAT>x</SB><PDAT>- where x is 2, 3, 4, or 5; or R<HIL><PDAT>1 </SB><PDAT>and R<HIL><PDAT>2 </SB><PDAT>together are methylated or dimethylated -(CH<HIL><PDAT>2</SB><PDAT>)<HIL><PDAT>y</SB><PDAT>- where y is 3, 4, or 5; and R<HIL><PDAT>3</SB><PDAT>, R<HIL><PDAT>4 </SB><PDAT>and R<HIL><PDAT>5 </SB><PDAT>are each methyl or ethyl, or one of R<HIL><PDAT>3</SB><PDAT>, R<HIL><PDAT>4 </SB><PDAT>or R<HIL><PDAT>5 </SB><PDAT>is methyl and the other two together are -(CH<HIL><PDAT>2</SB><PDAT>)<HIL><PDAT>z</SB><PDAT>- where z is 4, 5, 6 or 7;.</PTEXT>
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