SSZ-26 and SSZ-33: Two molecular sieves with intersecting 10- and 12-ring pores

Raul F. Lobo, Ming Pan, Ignatius Chan, Hong Xin Li, Ronald C. Medrud, Stacey I. Zones, Peter Crozier, Mark E. Davis

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Abstract

The framework structures of two closely related molecular sieves, SSZ-26 and SSZ-33, are described. These materials possess a previously missing but desired structural feature in a group of industrially significant zeolites. They contain a three-dimensional pore system that provides access to the crystal interior through both 10- and 12-rings. This property is a consequence of the organic structure-directing agents used in the synthesis of these materials. These materials are examples of the purposeful design of a micropore architecture. Both SSZ-26 and SSZ-33 contain the 4=4-1 building unit that had been previously found only in natural zeolites.

Original languageEnglish (US)
Pages (from-to)1543-1546
Number of pages4
JournalScience
Volume262
Issue number5139
Publication statusPublished - Dec 3 1993

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Cite this

Lobo, R. F., Pan, M., Chan, I., Li, H. X., Medrud, R. C., Zones, S. I., ... Davis, M. E. (1993). SSZ-26 and SSZ-33: Two molecular sieves with intersecting 10- and 12-ring pores. Science, 262(5139), 1543-1546.