Method of synthesizing an aluminosilicate molecular sieve by a crystal seed-assisted method

A method of synthesizing an aluminosilicate molecular sieve by a crystal seed-assisted method, comprising:

• performing activating treatment of a natural aluminosilicate clay mineral raw material with an alkali source, so as to prepare an activated crystal seed;
• mixing an alkali source aqueous solution with an aluminum source until a clear and transparent mixture is obtained, adding a silica sol dropwise into the mixture and stirring constantly, so as to prepare a reactant gel with an element composition controlled to be consistent with a composition of a target molecular sieve product;
• adding the activated crystal seed to the reactant gel and mixing to form a reactant precursor;
• putting the reactant precursor into a reactor for crystallization, wherein a crystallization temperature is 150-190° C., and a crystallization time is 36-72 h;
• and
• filtering a crystallization product, and washing to be neutral, then drying, so as to obtain the aluminosilicate molecular sieve;
• wherein the aluminosilicate molecular sieve is a ZSM-35 molecular sieve, a molar ratio of each component in the reactant gel is controlled as Na2O:K2O:SiO2:Al2O3:H2O=1.5:2.0-3.0:20-30:1:400-1200.