一种合成磷酸三丁酯用催化剂、制备方法及其应用
By using a catalyst generated from N-methylimidazole, dibromobutane, and heteropolyacids, the problems of low purity and yield of tributyl phosphate in existing technologies have been solved, achieving high catalytic efficiency and stability, making it suitable for large-scale production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HANGZHOU QIANYANG TECH
- Filing Date
- 2024-01-06
- Publication Date
- 2026-07-17
AI Technical Summary
In existing methods for synthesizing tributyl phosphate, the purity of the catalyst is no higher than 99.93%, and the yield is no higher than 78.4%. Furthermore, the synthesis steps of pyridine-based and supported molecular sieve catalysts are complex and not suitable for large-scale production.
Using N-methylimidazole, dibromobutane, and heteropolyacids as catalyst feedstocks, functional bromide salts are generated and react with heteropolyacids to form catalysts with high catalytic activity and chemical stability. The catalytic effect is improved by controlling the feedstock ratio and reaction conditions.
The yield of tributyl phosphate was significantly improved to 92.45-92.72%, the purity reached 99.993-99.995%, and good chemical stability was maintained.