Njengamanje, utshwala be-plasticizer obusetshenziswa kakhulu yi-2-propylheptanol (2-PH) kanye ne-isononyl alcohol (INA), esetshenziswa kakhulu ekukhiqizweni kwama-plasticizer esizukulwane esilandelayo. Ama-Esters akhiwe kusuka kuma-alcohols aphezulu njenge-2-PH kanye ne-INA anikeza ukuphepha okukhulu kanye nobungane bemvelo.
I-2-PH iphendula ne-phthalic anhydride ukuze yakhe i-di(2-propylheptyl) phthalate (DPHP). Imikhiqizo ye-PVC eyenziwe ngepulasitiki nge-DPHP ibonisa ukuvikela okuphezulu kukagesi, ukumelana nesimo sezulu, ukuguquguquka okuphansi, kanye nezakhiwo eziphansi ze-physico-chemical, okwenza zisetshenziswe kabanzi ezintanjeni, ezintweni zasendlini, kumafilimu ezingxenye zezimoto, kanye nasepulasitikini. Ngaphezu kwalokho, i-2-PH ingasetshenziswa ukuhlanganisa ama-surfactant angewona ama-ionic asebenza kahle kakhulu. Ngo-2012, i-BASF kanye ne-Sinopec Yangzi Petrochemical basebenzisana ndawonye ukwakha isikhungo sokukhiqiza samathani angu-80,000 ngonyaka samathani angu-2-PH, isitshalo sokuqala saseShayina sama-2-PH. Ngo-2014, i-Shenhua Baotou Coal Chemical Company yethule iyunithi yokukhiqiza yamathani angu-60,000 ngonyaka yamathani angu-2-PH, iphrojekthi yokuqala yaseShayina yamalahle esekelwe kuma-2-PH. Njengamanje, izinkampani eziningana ezinamaphrojekthi okusebenzisa amalahle kuya ku-olefin zihlela izikhungo ze-2-PH, okuhlanganisa i-Yanchang Petroleum (amathani angu-80,000 ngonyaka), i-China Coal Shaanxi Yulin (amathani angu-60,000 ngonyaka), kanye ne-Inner Mongolia Daxin (amathani angu-72,700 ngonyaka).
I-INA isetshenziswa kakhulu ukukhiqiza i-diisononyl phthalate (DINP), i-plasticizer ebalulekile yenhloso ejwayelekile. I-International Council of Toy Industries ibone i-DINP njengengeyona ingozi ezinganeni, futhi isidingo sayo esikhulayo eminyakeni yamuva nje sibangele ukwanda kokusetshenziswa kwe-INA. I-DINP isetshenziswa kabanzi ezimotweni, ezintanjeni, phansi, ekwakheni, nakwezinye izimboni. Ngo-Okthoba 2015, ukubambisana okungu-50:50 phakathi kwe-Sinopec ne-BASF kwaqala ngokusemthethweni ukukhiqiza esitshalweni se-INA esingamathani angu-180,000 ngonyaka eMaoming, eGuangdong—okuwukuphela kwesikhungo sokukhiqiza i-INA eShayina. Ukusetshenziswa kwasekhaya kungamathani angaba ngu-300,000, okushiya igebe lokunikezwa. Ngaphambi kwale phrojekthi, iShayina yayithembele ngokuphelele ekungenisweni kwe-INA, ngamathani angu-286,000 angeniswe ngo-2016.
Kokubili i-2-PH kanye ne-INA kukhiqizwa ngokusabela kwe-butenes kusuka emifudlaneni ye-C4 nge-syngas (H₂ kanye ne-CO2). Le nqubo isebenzisa ama-catalyst ayinkimbinkimbi ensimbi enhle, futhi ukuhlanganiswa nokukhetha kwala ma-catalyst kusalokhu kuyimingcele ebalulekile ekukhiqizweni kwe-2-PH kanye ne-INA yasekhaya. Eminyakeni yamuva nje, izikhungo eziningana zocwaningo zaseShayina ziye zathuthuka kubuchwepheshe bokukhiqiza be-INA kanye nokuthuthukiswa kwama-catalyst. Isibonelo, i-C1 Chemistry Laboratory yaseTsinghua University isebenzise ama-octenes axubile avela ku-butene oligomerization njenge-feedstock kanye ne-rhodium catalyst ene-triphenylphosphine oxide njenge-ligand, ithola isivuno esingu-90% se-isononanal, ihlinzeka ngesisekelo esiqinile sokukhulisa izimboni.
Isikhathi sokuthunyelwe: Julayi-14-2025