Synthesis of large crystal size ZSM-5

Chemistry of inorganic compounds – Zeolite – Organic compound used to form zeolite

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423DIG22, C01B 3334

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active

051820900

ABSTRACT:
There is provided a method for making large crystal size ZSM-5. This method involves the use of two organic cations, specifically tetrapropylammonium (TPA) and tetramethylammonium (TMA) cations, in the reaction mixture. This method further involves the use of a source of deliberately added alumina, such as aluminum sulfate, in the reaction mixture.

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Lok, B. M. et al, "The role of organic molecules in molecular sieve synthesis", Zeolites, vol. 3, pp. 282-291 (1983).
Breck, D. W., Zeolite Molecular Sieves, pp. 304-321, 376-377 (1974).

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