Njengamanje, utshwala be-plasticizer obusetshenziswa kakhulu yi-2-propylheptanol (2-PH) kanye ne-sinanyl alcohol (INA), esetshenziswa ngokuyinhloko ekukhiqizeni ama-plasticizers esizukulwane esilandelayo. Ama-Esters ahlanganiswe notshwala obuphezulu obufana ne-2-PH ne-INA anikeza ukuphepha okukhulu kanye nobungane bemvelo.
I-2-PH isabela ne-phthalic anhydride yakhe i-di(2-propylheptyl) phthalate (DPHP). Imikhiqizo ye-PVC eyenziwe ngepulasitiki nge-DPHP ibonisa ukugqugquzelwa kukagesi okuphakeme, ukumelana nesimo sezulu, ukuguquguquka okuphansi, kanye nezakhiwo zamakhemikhali e-physico-aphansi, okuwenza asebenze kabanzi kumakhebuli, izinto zikagesi zasendlini, amafilimu ezingxenye zezimoto, namapulasitiki aphansi. Ukwengeza, i-2-PH ingasetshenziswa ukuze kuhlanganiswe ama-surfactants angewona ama-nonionic asebenza ngokujwayelekile enhloso evamile. Ngo-2012, i-BASF kanye ne-Sinopec Yangzi Petrochemical ngokuhlanganyela bagunyaza indawo yokukhiqiza engu-2-PH engamathani angu-80,000 ngonyaka, indawo yokuqala yaseShayina engu-2-PH. Ngo-2014, i-Shenhua Baotou Coal Chemical Company yethula iyunithi yokukhiqiza engu-2-PH engamathani angu-60,000 ngonyaka, iphrojekthi yokuqala yase-China esekelwe emalahleni engu-2-PH. Njengamanje, izinkampani eziningana ezinamaphrojekthi wamalahle kuya ku-olefin zihlela izinsiza ze-2-PH, okuhlanganisa i-Yanchang Petroleum (amathani angama-80,000 ngonyaka), i-China Coal Shaanxi Yulin (amathani angu-60,000 ngonyaka), kanye ne-Inner Mongolia Daxin (amathani angama-72,700 ngonyaka).
I-INA isetshenziswa kakhulu ukukhiqiza i-diisonyl phthalate (DINP), i-plasticizer ebalulekile yenjongo evamile. I-International Council of Toy Industries ibone i-DINP ingeyona ingozi ezinganeni, futhi isidingo sayo esikhulayo eminyakeni yamuva nje siqhubekisele phambili ukusetshenziswa kwe-INA. I-DINP isetshenziswa kabanzi kwezezimoto, izintambo, phansi, ezokwakha, nakweminye imikhakha yezimboni. Ngo-Okthoba 2015, ukuhlanganyela kwe-50:50 phakathi kwe-Sinopec ne-BASF kwaqala ngokusemthethweni ukukhiqiza embonini ye-INA engamathani angu-180,000 ngonyaka e-Maoming, e-Guangdong—okuwukuphela kwesikhungo sokukhiqiza se-INA e-China. Ukusetshenziswa kwasekhaya kungamathani angaba ngu-300,000, okushiya igebe lokuhlinzeka. Ngaphambi kwale phrojekthi, i-China yayithembele ngokuphelele ekuthengisweni kwe-INA, ngamathani ayi-286,000 angenisiwe ngo-2016.
Kokubili i-2-PH ne-INA kukhiqizwa ngokuphendula ama-butenes avela ekusakazweni kwe-C4 ngama-syngas (H₂ ne-CO). Inqubo isebenzisa ama-catalysts ayinkimbinkimbi ensimbi, futhi ukuhlanganiswa nokukhetha kwalawa ma-catalyst kuhlala kuyizingqinamba ezibalulekile ekukhiqizeni kwasekhaya kwe-2-PH kanye ne-INA. Eminyakeni yamuva, izikhungo eziningi zocwaningo zaseShayina zenze inqubekelaphambili kubuchwepheshe bokukhiqiza be-INA kanye nokuthuthukiswa kwe-catalyst. Isibonelo, iC1 Chemistry Laboratory yaseTsinghua University's C1 Chemistry Laboratory yasebenzisa ama-octene axubile asuka ku-butene oligomerization njenge-feedstock kanye ne-rhodium catalyst ene-triphenylphosphine oxide njenge-ligand, ezuza isivuno esingu-90% se-sinanal, ehlinzeka ngesisekelo esiqinile sokukhulisa izimboni.
Isikhathi sokuthumela: Jul-14-2025