Synthesis of chabazite structure-containing molecular sieves...

Details Synthesis of chabazite structure-containing molecular sieves... Synthesis of chabazite structure-containing molecular sieves...

2011-05-10

2011-05-10

Brunsman, David M (Department: 1732)

Chemistry of inorganic compounds

Phosphorus or compound thereof

Oxygen containing

Reexamination Certificate

active

07939043

ABSTRACT:
In a method of synthesizing a silicoaluminophosphate or aluminophosphate molecular sieve comprising a CHA framework-type material, a synthesis mixture is provided comprising a source of aluminum, a source of phosphorus, optionally a source of silicon and at least one organic template of formula (I):in-line-formulae description="In-line Formulae" end="lead"?[R1R2R3R4N]+X−  (I)in-line-formulae description="In-line Formulae" end="tail"?wherein each of R1, R2, R3, and R4is independently an acyclic alkyl group having at least one carbon atom, the total number of carbon atoms in said alkyl groups R1, R2, R3, and R4is greater than 8 but less than 16, and X−is an anion. The synthesis mixture can then be crystallized to produce the desired molecular sieve.

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