Method for preparing diisopropanolamine
A technology of diisopropanolamine and temperature control, applied in chemical instruments and methods, preparation of organic compounds, preparation of aminohydroxy compounds, etc., can solve the problems of high isomer content, inability to synthesize intermediates and the like, Achieve the effect of high product quality, low production cost and low production operation cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0015] Fully mix 4950kg liquid ammonia and 50kg deionized water to form ammonia water (water 1%), transport it with a high-pressure metering pump, and then use another high-pressure metering pump to deliver 2815kg (the molar ratio of ammonia to cyclopropane is 6), cyclopropane and ammonia water After fully mixing, enter the preheater, preheat to 140°C, and then enter the reactor with temperature controlled at 151-154°C and pressure controlled at 16.8-17.0Mpa. After fully reacting for 3 hours, the reaction mixture product first enters flash evaporation Tower, the pressure is controlled at 1.5Mpa, the temperature of the tower bottom is controlled at 155-158°C, excess ammonia is recovered, the materials in the flash tower bottom are sent to the dehydration tower for rectification and dehydration, the pressure of the dehydration tower is controlled at -0.085Mpa, and the temperature of the top of the tower is controlled At 46-47°C, the temperature of the tower bottom is controlled a...
Embodiment 2
[0017] Fully mix 4925kg liquid ammonia and 75kg deionized water to form ammonia water (water 1.5%), transport it with a high-pressure metering pump, and then use another high-pressure metering pump to deliver 2400kg (the molar ratio of ammonia to cyclopropane is 7), cyclopropane and ammonia water After fully mixing, enter the preheater, preheat to 142°C, and then enter the reactor with temperature controlled at 152-155°C and pressure controlled at 17.0-17.3Mpa. After fully reacting for 2.5 hours, the reaction mixture product first enters flash evaporation Tower, the pressure is controlled at 1.0Mpa, the temperature of the tower bottom is controlled at 155-158°C, excess ammonia is recovered, the materials in the flash tower bottom are sent to the dehydration tower for rectification and dehydration, the pressure is controlled at -0.082Mpa, and the temperature at the top of the tower is controlled at 53 ~54°C, the temperature of the tower bottom is controlled at 123-125°C, the pre...
Embodiment 3
[0019] Fully mix 4875kg liquid ammonia and 125kg deionized water to form ammonia water (water 2.5%), transport with high-pressure metering pump, and then use another high-pressure metering pump to transport 2079kg (the molar ratio of ammonia to cyclopropane is 8), cyclopropane and ammonia water After fully mixing, enter the preheater, preheat to 143°C, and then enter the reactor with the temperature controlled at 149-152°C and the pressure controlled at 17.2-17.5Mpa. After fully reacting for 2.0 hours, the reaction mixture product first enters flash evaporation Tower, the pressure is controlled at 0.8Mpa, the temperature of the tower bottom is controlled at 145-148°C, excess ammonia is recovered, the materials in the flash tower bottom are sent to the dehydration tower for rectification and dehydration, the pressure is controlled at -0.085Mpa, and the temperature at the top of the tower is controlled at 46 ~47°C, the temperature of the tower bottom is controlled at 114-115°C, t...
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