| 摘要 |
A process for producing a crystalline zeolite TPZ-12, which comprises maintaining a starting mixture at a temperature of at least 80 DEG C. for a period sufficient to produce zeolite crystals, said starting mixture consisting of (a) a substance capable of yielding silica under the reaction conditions, (b) a water-soluble alkali metal compound, (c) water, and (d) a diammonium compound represented by the following general formula <IMAGE> (I) wherein R1 and R2 are identical or different and each represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, p and q are identical or different and each represents an integer of 4 or 5, n is 4, 5 or 6, and y represents an anion having a valence of m, and additionally, if desired, (e) a substance capable of yielding alumina under the reaction conditions, in the particular quantities.
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