Chiyambi

Ma cyclic carbonates akuphatikizapo ma carbonates okhala ndi ziwalo zisanu, asanu ndi limodzi, asanu ndi awiri ndi ma macrocyclic carbonates okhala ndi ziwalo zisanu kapena kuposerapo, pakati pawo propylene carbonate ndi ethylene carbonate ndi omwe amagwiritsidwa ntchito kwambiri. Ethylene carbonate ndi chinthu chabwino kwambiri chosungunulira polar high-boiling point solvent ndi surfactant raw, chomwe chimagwiritsidwa ntchito kwambiri mu pulasitiki, kusindikiza ndi kupaka utoto, kupanga ma polymer, kulekanitsa gasi ndi electrochemistry.

Kapangidwe ka mankhwala: Madzi opanda mtundu, opanda fungo, oyaka moto. Amasakanikirana ndi ether, acetone, benzene, chloroform, ethyl acetate, ndi zina zotero, amasungunuka m'madzi ndi carbon tetrachloride.

Ntchito: Amagwiritsidwa ntchito ngati mafuta osungunula, ozungulira solvent, olefin ndi aromatic extractant, carbon dioxide absorbent, dispersant ya utoto ndi utoto wosungunuka m'madzi, ndi zina zotero.

Njira Zopangira 1. Njira ya Phosgene Propylene glycol yaiwisi imagwira ntchito ndi phosgene kuti ipange hydroxyisopropyl chloroformate, yomwe kenako imagwira ntchito ndi sodium hydroxide kuti ipange propylene carbonate, kenako chinthu chomalizidwa chimapezeka pogwiritsa ntchito vacuum distillation. 2. Njira yosinthira Ester. 3. Njira ya Chloropropanol. 4. Njira yopangira Propylene oxide ndi carbon dioxide Carbon dioxide ndi propylene oxide zimagwira ntchito pa 150-160℃ Chemicalbook ndi 5MPa kuti zipange propylene carbonate. Chinthu chomalizidwa chimapezeka pogwiritsa ntchito vacuum distillation. Njira zomwe zili pamwambapa zakhala zikugwiritsidwa ntchito m'mafakitale, koma njira zitatu zoyambirira zili ndi ndalama zambiri zopangira komanso khalidwe loipa la chinthu, kotero pang'onopang'ono zimasinthidwa ndi njira yachinayi. 5. Njira yopangira Propylene oxidation ndi carbon dioxide. Njira iyi ndi njira yopangira yomwe idapangidwa mu labotale m'zaka zaposachedwa.

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