PRODUCING ZEOLITE SSZ-39 USING ISOMERIC MIXTURES OF ORGANIC STRUCTURE DIRECTING AGENTS

摘要

The present disclosure is directed to producing zeolite structures, especially Zeolite SSZ-39, using organic structure directing agents (OSDAs). In particular, the OSDAs comprise isomeric mixtures of N,N-dialkyl piperidinium cations.

主权项

1. A process comprising hydrothermally treating a composition comprising:
(a) at least one source of silicon oxide, germanium oxide, or a combination thereof; (b) water; and (c) an organic structure directing agent mixture comprising at least two isomers of the quaternary piperidinium cation of Formula (I): under conditions effective to crystallize a crystalline composition having an AEI framework topology; wherein RA and RB are independently a C1-3 alkyl, or together with the N to which they are bound form a 5 or 6 membered saturated or unsaturated ring; and R2, R3, R4, R5, and R6 are independently H or a C1-3 alkyl, provided at least one of R2, R3, R4, R5, and R6 is independently C1-3 alkyl.