| 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 …<CHEM>… 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. |
