Synthesis of borosilicate ton-framework type molecular sieves

摘要

A method is disclosed for synthesizing borosilicate TON-framework type molecular sieves in a hydroxide media using a 1,3-dimethylimidazolium cation or a 1,4-bis(N-methylimidazolium)butane dication as a structure directing agent.

主权项

1. A method for preparing a borosilicate TON-framework type molecular sieve, comprising:
(a) preparing a reaction mixture containing: (1) at least one source of silicon; (2) at least one source of boron; (3) at least one source of an element selected from Groups 1 and 2 of the Periodic Table; (4) hydroxide ions; (5) a structure directing agent selected from the group consisting of a 1,3-dimethylimidazolium cation and a 1,4-bis(N-methylimidazolium)butane dication; and (6) water; and (b) maintaining the reaction mixture under crystallization conditions sufficient to form crystals of the molecular sieve.