i-propylene oxideiwuhlobo lwezinto ezisetshenziswayo zamakhemikhali aphilayo ezibalulekile futhi Lesisemkhatsini.Isetshenziswa kakhulu ekuhlanganiseni ama-polyether polyols, i-polyester polyols, i-polyurethane, i-polyether amine, njll., futhi iyimpahla ebalulekile yokulungiswa kwe-polyester polyols, okuyingxenye ebalulekile ye-polyurethane ephezulu yokusebenza.I-Propylene oxide nayo isetshenziswa njengento eluhlaza ekulungiseni ama-surfactants ahlukahlukene, izidakamizwa, amakhemikhali ezolimo, njll., futhi ingenye yezinto ezibalulekile zokusetshenziswa kwemboni yamakhemikhali.

I-Propylene oxide ikhiqizwa yi-oxidation ye-propylene ene-catalyst.I-propylene yempahla eluhlaza ixutshwa nomoya ocindezelwe bese idluliswa ku-reactor egcwele i-catalyst.Izinga lokushisa lokusabela livamise ukuba ngu-200-300 DEG C, futhi ingcindezi icishe ibe ngu-1000 kPa.Umkhiqizo wokusabela uyingxube equkethe i-propylene oxide, i-carbon dioxide, i-carbon monoxide, amanzi nezinye izinhlanganisela.I-catalyst esetshenziswe kulokhu kusabela i-transition metal oxide catalyst, njenge-silver oxide catalyst, i-chromium oxide catalyst, njll. Ukukhethwa kwalezi zikhuthazi ku-propylene oxide kuphezulu uma kuqhathaniswa, kodwa umsebenzi uphansi.Ngaphezu kwalokho, i-catalyst ngokwayo izovalwa ngesikhathi sokusabela, ngakho-ke idinga ukuvuselelwa noma ukushintshwa njalo.

Ukuhlukaniswa nokuhlanzwa kwe-propylene oxide kusuka kungxube yokusabela kuyizinyathelo ezibaluleke kakhulu ekulungiseleleni.Inqubo yokuhlukanisa ngokuvamile ihlanganisa ukugeza amanzi, ukucwiliswa kwe-distillation nezinye izinyathelo.Okokuqala, ingxube yokusabela igezwa ngamanzi ukuze isuse izingxenye eziphansi ezibilayo ezifana ne-propylene engaphenduliwe ne-carbon monoxide.Khona-ke, ingxube ihlanjululwa ukuze ihlukanise i-propylene oxide kwezinye izingxenye ezibilisa kakhulu.Ukuze uthole i-high-purity propylene oxide, izinyathelo ezengeziwe zokuhlanza ezifana ne-adsorption noma ukukhipha kungase kudingeke.

Ngokuvamile, ukulungiswa kwe-propylene oxide kuyinkqubo eyinkimbinkimbi, edinga izinyathelo eziningi kanye nokusetshenziswa kwamandla aphezulu.Ngakho-ke, ukuze kuncishiswe izindleko kanye nomthelela wemvelo wale nqubo, kuyadingeka ukuthuthukisa ngokuqhubekayo ubuchwepheshe kanye nemishini yenqubo.Njengamanje, ucwaningo lwezinqubo ezintsha zokulungiselela i-propylene oxide ngokuyinhloko lugxile ezinqubweni ezihambisana nemvelo ezisebenzisa amandla aphansi nokusebenza kahle okuphezulu, njenge-catalytic oxidation kusetshenziswa umoya-mpilo wamangqamuzana njenge-oxidant, inqubo ye-oxidation ye-microwave-assisted, inqubo ye-oxidation ephezulu, njll. Ngaphezu kwalokho. , ucwaningo lwama-catalysts amasha kanye nezindlela ezintsha zokuhlukanisa nazo zibaluleke kakhulu ekuthuthukiseni isivuno nokuhlanzeka kwe-propylene oxide nokunciphisa izindleko zokukhiqiza.