propylene oxidendi mtundu wa zinthu zofunika organic mankhwala zopangira ndi wapakatikati. Amagwiritsidwa ntchito kwambiri popanga ma polyether polyols, polyester polyols, polyurethane, polyether amine, etc., ndipo ndizofunikira kwambiri popanga ma polyester polyols, omwe ndi gawo lofunika kwambiri la polyurethane. Propylene okusayidi amagwiritsidwanso ntchito ngati zopangira pokonzekera zosiyanasiyana surfactants, mankhwala, ulimi mankhwala, etc., ndipo ndi imodzi mwa zipangizo zofunika kwa makampani mankhwala.

Propylene oxide imapangidwa ndi okosijeni wa propylene ndi chothandizira. The zopangira propylene ndi wothira wothinikizidwa mpweya ndiyeno anadutsa riyakitala wodzazidwa ndi chothandizira. Kutentha komwe kumachitika nthawi zambiri kumakhala 200-300 DEG C, ndipo kupanikizika kumakhala pafupifupi 1000 kPa. The anachita mankhwala osakaniza munali propylene okusayidi, mpweya woipa, mpweya monoxide, madzi ndi mankhwala ena. Chothandizira ntchito mu anachita ndi kusintha zitsulo okusayidi chothandizira, monga chothandizira siliva okusayidi, chromium okusayidi chothandizira, etc. The selectivity wa chothandizira kuti propylene okusayidi ndi mkulu, koma ntchito ndi otsika. Kuphatikiza apo, chothandizira chokhacho chidzazimitsidwa panthawiyi, choncho chiyenera kusinthidwa kapena kusinthidwa nthawi zonse.

Kupatukana ndi kuyeretsedwa kwa propylene oxide kuchokera pazomwe osakaniza ndizofunika kwambiri pokonzekera. Njira yolekanitsa imaphatikizapo kutsuka madzi, distillation ndi njira zina. Choyamba, zomwe zimasakanikirana zimatsukidwa ndi madzi kuti zichotse zigawo zochepa zotentha monga propylene yosasinthika ndi carbon monoxide. Kenako, osakaniza ndi distilled kulekanitsa propylene okusayidi ku zigawo zina mkulu-kuwira. Kuti mupeze propylene oxide yapamwamba kwambiri, njira zina zoyeretsera monga adsorption kapena kuchotsa zingafunike.

Kawirikawiri, kukonzekera kwa propylene oxide ndi njira yovuta, yomwe imafuna masitepe angapo komanso kugwiritsa ntchito mphamvu zambiri. Choncho, pofuna kuchepetsa mtengo ndi chilengedwe cha ndondomekoyi, m'pofunika kupititsa patsogolo teknoloji ndi zipangizo za ndondomekoyi. Pakali pano, kafukufuku wa njira zatsopano pokonzekera propylene okusayidi makamaka imayang'ana njira zachilengedwe wochezeka ndi otsika mphamvu mowa ndi dzuwa mkulu, monga chothandizira makutidwe ndi okosijeni ntchito molekyulu okosijeni monga okosijeni, mayikirowevu-anathandiza makutidwe ndi okosijeni ndondomeko, njira supercritical makutidwe ndi okosijeni, etc. Komanso, kafukufuku catalysts latsopano ndi njira zatsopano kulekana ndi wofunika kwambiri ndi njira zolekanitsa purity ndi zokolola za purity ndi zokolola zofunika kwambiri kwa purity oxidation. mtengo wopanga.