Gabatarwa

Kwayoyin carbonate masu zagaye sun haɗa da carbonates masu membobi biyar, masu membobi shida, masu membobi bakwai da kuma macrocyclic carbonates masu membobi bakwai ko fiye, daga cikinsu akwai propylene carbonate da ethylene carbonate da aka fi amfani da su. Ethylene carbonate kyakkyawan sinadarin solvent ne mai zafi da kuma kayan da ke samar da sinadarai masu surfactant, wanda ake amfani da shi sosai a fannin robobi, bugu da rini, hada polymer, rabuwar iskar gas da kuma electrochemistry.

Halayen sinadarai: Ruwa mara launi, mara ƙamshi, mai ƙonewa. Ana iya misalta shi da ether, acetone, benzene, chloroform, ethyl acetate, da sauransu, yana narkewa a cikin ruwa da carbon tetrachloride.

Amfani: Ana amfani da shi azaman mai mai narkewa, mai narkewa mai juyawa, mai cire sinadarin olefin da ƙamshi, mai shan carbon dioxide, mai warwatsewa don rini da launuka masu narkewa cikin ruwa, da sauransu.

Hanyoyin Samarwa 1. Hanyar Phosgene Kayan da aka samar da propylene glycol yana amsawa da phosgene don samar da hydroxyisopropyl chloroformate, wanda daga nan sai ya yi aiki da sodium hydroxide don samar da propylene carbonate, sannan samfurin da aka gama ana samunsa ta hanyar tacewa ta injin. 2. Hanyar musayar Ester. 3. Hanyar Chloropropanol. 4. Hanyar hada propylene oxide da carbon dioxide Carbon dioxide da propylene oxide suna amsawa a 150-160℃Chemicalbook da 5MPa don samar da propylene carbonate. Ana samun samfurin da aka gama ta hanyar tacewa ta injin. An haɓaka hanyoyin da ke sama, amma hanyoyin farko guda uku suna da tsadar samarwa da ƙarancin ingancin samfura, don haka a hankali ana maye gurbinsu da hanya ta huɗu. 5. Hanyar hadawa ta propylene oxidation da carbon dioxide. Wannan hanya wata hanya ce ta hadawa da aka haɓaka a dakin gwaje-gwaje a cikin 'yan shekarun nan.

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