Synthesis of zeolite SSZ-16
AssigneeChevron U.S.A. Inc.
InventorsSaleh Ali Elomari, Tracy Margaret Davis
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Abstract
A method is disclosed for synthesizing a zeolite having the framework structure of SSZ-16 using a structure directing agent comprising a dication selected from one or more of 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpiperidinium]; 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpyrrolidinium]; and 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpyrrolidinium].
Claims7
A method of synthesizing a zeolite having the structure of SSZ-16, the method comprising:
- (a) preparing a reaction mixture comprising:
- (1) a source of silicon oxide;
- (2) a source of aluminum oxide;
- (3) a source of a Group 1 or 2 metal (M);
- (4) a structure directing agent (Q) comprises a dication selected from one or more of 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpiperidinium];
- 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpiperidinium];
- 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpyrrolidinium];
- and
- 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpyrrolidinium];
- (5) hydroxide ions;
- and
- (6) water;
- and
- (b) subjecting the reaction mixture to crystallization conditions sufficient to form crystals of the zeolite.
A zeolite having the structure of SSZ-16 and comprising in its pores a dication selected from one or more of:
- 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpiperidinium];
- 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpiperidinium];
- 1,1′-(1,4-cyclohexylenedimethylene)bis[1-methylpyrrolidinium];
- and
- 1,1′-(1,4-cyclohexylenedimethylene)bis[1-ethylpyrrolidinium].
Dependencies are inferred from the claim text.