Ultra-high-yield molecular sieve, preparation method and application thereof

Abstract

This invention provides an ultra-high yield molecular sieve, its preparation method, and its application. The method includes: mixing [C] in a molar ratio of (0.5–2.5):1. n Heating a mixture of mim]R and FeZ2 yields an iron source [xC] n mim][FeZ2R x [The following text appears to be a separate, unrelated section:] Where n≥2, x=0.5~2.5, R and Z are both Cl ions or Br ions; An alkali source, structure directing agent, aluminum source, iron source, and silicon source are added to water and stirred evenly to obtain a gel, which is then subjected to hydrothermal crystallization to synthesize the product; the product is washed and dried, and then calcined to remove the structure directing agent to obtain a molecular sieve with ultra-high yield. This invention avoids the Fe... 2+ Oxidized to Fe 3+ This invention does not introduce inorganic alkali metal cations, and the prepared molecular sieve has better catalytic activity. It improves the product yield and raw material utilization of molecular sieves, reduces the difficulty of treating molecular sieve synthesis waste liquid, controls costs, and has practicality.

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