一种光预聚促进Ti杂原子嵌入沸石骨架的方法
By promoting the embedding of Ti heteroatoms into the zeolite framework through photopolymerization, the problems of waste liquid discharge and high pressure safety hazards in the preparation of TS-1 zeolite molecular sieves were solved, realizing the preparation of TS-1 molecular sieves in a high-efficiency and green manner, and improving the embedding efficiency of titanium source in zeolite framework.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUAIYIN INSTITUTE OF TECHNOLOGY
- Filing Date
- 2024-05-28
- Publication Date
- 2026-07-17
AI Technical Summary
The existing preparation process of TS-1 zeolite molecular sieve has problems such as large waste liquid discharge, low molecular sieve yield, and safety hazards in high-pressure reactors. In addition, the embedding efficiency of titanium source in zeolite framework is low.
The photopolymerization method was used to promote the embedding of Ti heteroatoms into the zeolite framework. The silicon source, titanium source and photoacid generator were mixed in a light-proof environment through photo-induced acid sol-gel reaction to form a zeolite prepolymer with Ti embedded in the framework. Then, the prepolymer was crystallized and calcined without solvent to prepare TS-1 zeolite molecular sieve.
The preparation of highly crystallizable TS-1 molecular sieves was achieved, reducing the pressure inside the crystallization vessel, simplifying the operation process, improving the embedding efficiency of titanium source in zeolite framework, and avoiding the use of solvents, thus providing a green and economical synthesis route.
Smart Images
Figure CN118359206B_ABST