Synthesis method and application of carbon dioxide absorbent
A synthesis method and carbon dioxide technology, applied in chemical instruments and methods, separation methods, preparation of organic compounds, etc., to achieve strong stability, fast absorption rate, and stable absorption of CO2
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0031] 47 g of acrylonitrile was taken and added dropwise to 50 g of ethanolamine in 90 min. The reaction temperature was controlled at 20 °C. After the addition was completed, the reaction was stirred for 3 h. The unreacted material was evaporated to dryness under reduced pressure at °C to obtain 3-[ethyl(2-hydroxyethyl)amino]propionitrile. ice bath, N 2 Under the protection, dissolve 1.1g of sodium borohydride in 25ml of tetrahydrofuran solution; take 2ml of 3-[ethyl(2-hydroxyethyl)amino]propionitrile, dissolve it in 20ml of tetrahydrofuran, and slowly add it dropwise to the solution of sodium borohydride, After the completion of the dropwise addition, the reaction was carried out at 0 °C for 2 h. After the completion of the reaction, hydrolyzed with concentrated hydrochloric acid and transferred to a clean beaker, then filtered, rinsed with tetrahydrofuran solution, and evaporated the solvent under reduced pressure to obtain 2-((3-aminopropyl)(ethyl)amino)ethanol , the yi...
Embodiment 2
[0033] 47 g of acrylonitrile was taken and added dropwise to 50 g of ethanolamine in 90 min. The reaction temperature was controlled at 20 °C. After the addition was completed, the reaction was stirred for 3 h. The unreacted material was evaporated to dryness under reduced pressure at °C to obtain 3-[ethyl(2-hydroxyethyl)amino]propionitrile. ice bath, N 2 Under the protection, dissolve 1.1 g of lithium aluminum hydride in 22 ml of tetrahydrofuran solution; take 2 ml of 3-[ethyl(2-hydroxyethyl)amino]propionitrile, dissolve it in 20 ml of tetrahydrofuran, and slowly add it dropwise to the solution of lithium aluminum hydride, dropwise After the addition was completed, the reaction was carried out at 0 °C for 2 h. After the reaction was completed, 1.1 g of deionized water was slowly added dropwise to the reaction solution, deionized water was added dropwise for 10 min, and then 1.1 g of 15% NaOH solution was added dropwise to quench the reaction, then filtered, and the solvent w...
Embodiment 3
[0035] 56.5 g of acrylonitrile was taken and added dropwise to 50 g of ethanolamine in 90 min. The reaction temperature was controlled to be 30 °C. After the dropwise addition was completed, the reaction was stirred for 5 h. After the reaction was completed, the reaction mixture was transferred to a water bath and heated at 80 °C for 30 min. The unreacted material was evaporated to dryness under reduced pressure at 110°C to obtain 3-[ethyl(2-hydroxyethyl)amino]propionitrile. ice bath, N 2 Under the protection, dissolve 1.1 g of lithium aluminum hydride in 22 ml of tetrahydrofuran solution; take 2 ml of 3-[ethyl(2-hydroxyethyl)amino]propionitrile, dissolve it in 20 ml of tetrahydrofuran, and slowly add it dropwise to the solution of lithium aluminum hydride, dropwise After the addition was completed, the reaction was carried out at 5°C for 2h. After the reaction was completed, 1.1 g of deionized water was slowly added dropwise to the reaction solution, deionized water was adde...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More