Preparation method of N-methylaniline
By reacting with aniline with a mixture of carbon dioxide, carbon monoxide and hydrogen, and using catalysts such as CuOxZnOyX for catalyzing, the problem of using toxic compounds in the traditional N-methylaniline preparation method is solved, and efficient and environmentally friendly preparation of N-methylaniline is achieved.
Patent Information
- Application Number
- CN202411835050.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-03-18
AI Technical Summary
The traditional N-methylaniline preparation method uses toxic carcinogenic compounds, which leads to many by-products, is harmful to the human body and the environment, and has limited catalyst selection, which has problems with equipment corrosion and environmental pollution.
The mixture of carbon dioxide, carbon monoxide and hydrogen is reacted with aniline, and catalyzed with catalysts such as CuOxZnOyX. The reaction is carried out in a pressurized fixed bed continuous flow reactor to control the reaction conditions such as pressure, temperature and gas molar ratio to improve the reaction efficiency and selectivity.
It realizes efficient preparation of N-methylaniline, reduces the generation of by-products, improves the environmental protection and safety of the reaction, and reduces the risks of equipment corrosion and environmental pollution.