METHOD FOR PREPARING ZEOLITE SSZ-52

摘要

A method is disclosed for synthesizing zeolite SSZ-52 in the presence of an organic structure directing agent having the following structure (1):;;wherein R1, R2, R3 and R4 are independently selected from the group consisting of alkyl groups having from 1 to 3 carbon atoms and n has a value of 0, 1 or 2.

主权项

1. A method for preparing zeolite SSZ-52, comprising:
(a) preparing a reaction mixture containing:
(1) at least one source of silicon;(2) one or more sources of one or more oxides selected from the group consisting of oxides of trivalent elements, pentavalent elements, and mixtures thereof;(3) at least one source of an element selected from Groups 1 and 2 of the Periodic Table;(4) at least one organic structure directing agent represented by the following structure:wherein R1, R2, R3 and R4 are independently selected from the group consisting of alkyl groups having from 1 to 3 carbon atoms and n has a value of 0, 1 or 2;
(5) optionally, an auxiliary structure directing agent comprising an N-cyclohexylmethyl-N-ethylpiperidinium cation;
(6) hydroxide ions; and(7) water; and (b) subjecting the reaction mixture to crystallization conditions sufficient to form crystals of the zeolite.