The invention relates to a method for synthesizing an EMM-23
molecular sieve. The method comprises the following steps: a, 1, 4-dibromobutane, N, N, N ', N'-tetramethyl-1, 6-
hexamethylenediamine and asolvent are mixed and subjected to a pre-reaction at 15-90 DEG C for 0.5-96 h, a pre-
reaction product is obtained, and the
molar ratio of 1, 4-dibromobutane, N, N, N ', N'-tetramethyl-1, 6-
hexamethylenediamine to the
solvent is 1: (0.8-1.5): (1-20); and b, mixing the pre-
reaction product obtained in the step a, inorganic alkali, an aluminum source, a
silicon source and water to obtain a mixture to be crystallized, carrying out hydrothermal
crystallization treatment on the mixture to be crystallized, and recovering a
solid product. According to the method, the tedious processes of high-cost separation, purification and the like which are necessary for conventional synthesis of the EMM-23
molecular sieve template agent are omitted, a large amount of time consumption,
energy consumption andmaterial consumption are avoided, and the effect of reducing the cost is obvious.