Method for preparing epoxy chloropropane by cyclizing dichloropropanol in microreactor
A technology of epichlorohydrin and microreactor, which is applied in the chemical industry, organic chemistry, sustainable manufacturing/processing, etc., can solve the problems of intensified hydrolysis reaction, high local alkali concentration, and reduced reaction yield, so as to improve the effective Concentration, high selectivity, and the effect of increasing reaction yield
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0016] Carry out experiment according to this method, preparation solution A, containing dichloropropanol concentration is 2wt.%, hydrogen chloride concentration is 0, preparation solution B, containing sodium hydroxide concentration is 2wt.%, both flows are respectively 20ml / min and 6.2 ml / min, the ratio of the molar ratio (hydroxide / (dichloropropanol+hydrogen chloride)) to 1 is passed into the membrane dispersion micro-reactor, the temperature of the reaction system is 90°C, the two-phase fluid in the reaction equipment The dwell time is 10s. The product was analyzed, and the conversion rate of the reaction reached 98%, and the selectivity reached 99.4%.
Embodiment 2
[0018] Carry out experiment according to this method, preparation solution A, containing dichloropropanol concentration is 5wt.%, hydrogen chloride concentration is 1.4wt.%, preparation solution B, containing sodium hydroxide concentration is 10wt.%, both flows are respectively 20ml / min and 7.4ml / min, the molar ratio (hydroxide / (dichloropropanol+hydrogen chloride)) is 1.2 into the membrane dispersion microreactor, the temperature of the reaction system is 70 ° C, the two-phase fluid is reacting The dwell time in the device is 100s. The product was analyzed, and the conversion rate of the reaction reached 99%, and the selectivity reached 98.3%.
Embodiment 3
[0020] Carry out experiment according to this method, preparation solution A, containing dichloropropanol concentration is 10wt.%, hydrogen chloride concentration is 2.8wt.%, preparation solution B, containing sodium hydroxide concentration is 5wt.%, both flows are respectively 20ml / min and 24.6ml / min, with the ratio of molar ratio (hydroxide / (dichloropropanol+hydrogen chloride)) being 1, it is passed into the micro-sieve reactor, the temperature of the reaction system is 40°C, and the two-phase fluid is in the reaction equipment The dwell time in is 600s. The product was analyzed, and the conversion rate of the reaction reached 98%, and the selectivity reached 96.3%.
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