The synthesis of zsm-5 molecular sieve is hydrothermal. The starting material of synthesis is usually heterogeneous silicoaluminate. The most typical gel is a mixture of active silicon source, aluminum source, alkali and water.In the preparation process, the ratio of raw materials, uniformity of the system, reaction temperature, pH, crystallization time and so on have a great impact on the synthesis of molecular sieve.For the synthesis of high silicon zsm-5 molecular sieves, organic template is needed.This experiment by n-butyl amine as the template agent, the reaction mixture composition: 10 nao: Al2O3:84 sio2:32 R: 3500 h2o (R) on behalf of n-butyl amine.The raw materials used were silica silica and aluminum sulfate, respectively mixed with sodium hydroxide, sodium chloride and deionized water, then added n-butylamine, stirred evenly, and crystallized at 180℃ for about seven days to obtain the original zsm-5 zeolite powder
