Preparation method of trifluoroacetamidine
A kind of technology of trifluoroacetamidine and trifluoroacetamide, applied in the field of preparation of trifluoroacetamidine
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0014] (1) Preheat polyphosphoric acid at 50°C to increase its fluidity;
[0015] (2) Add 100Kg trifluoroacetamide, 170Kg phosphorus pentoxide and 200L polyphosphoric acid to a 1000L gas reactor respectively, stir at a constant speed, and slowly raise the temperature to 150°C, and the gas produced immediately is trifluoroacetonitrile;
[0016] (3) Pour trifluoroacetonitrile into a 500L liquid ammonia kettle after cooling, keep the reaction temperature at -40 to -35°C, and stop the reaction after stirring for 3 hours;
[0017] (4) Recycling and processing excess liquid ammonia, distilling the remaining raffinate under reduced pressure, collecting 35-37°C / 11mmHg fraction to obtain a colorless liquid, which is the product trifluoroacetamidine, the product purity is higher than 95%, and the yield is higher than 85%.
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com