Tam sim no, cov khoom siv plasticizer feem ntau yog 2-propylheptanol (2-PH) thiab isonyl cawv (INA), feem ntau siv rau hauv kev tsim cov plasticizers tom ntej. Esters synthesized los ntawm cov cawv ntau dua xws li 2-PH thiab INA muab kev nyab xeeb dua thiab kev phooj ywg ib puag ncig.
2-PH reacts nrog phthalic anhydride los tsim di (2-propylheptyl) phthalate (DPHP). PVC cov khoom yas nrog DPHP nthuav tawm cov khoom siv hluav taws xob zoo tshaj plaws, huab cua tsis kam, tsis muaj zog, thiab cov khoom siv hluav taws xob tsawg, ua rau lawv siv dav hauv cov cables, khoom siv hauv tsev, cov khoom siv hauv tsheb, thiab cov khoom siv hauv tsev. Tsis tas li ntawd, 2-PH tuaj yeem siv los ua kom muaj kev ua tau zoo ntawm cov hom phiaj nonionic surfactants. Hauv xyoo 2012, BASF thiab Sinopec Yangzi Petrochemical koom ua ke ua haujlwm 80,000-tuj-ib-xyoos 2-PH chaw tsim khoom, Tuam Tshoj thawj 2-PH cog. Nyob rau hauv 2014, Shenhua Baotou Coal Chemical Company launched ib tug 60,000-tuj-ib-xyoos 2-PH ntau lawm unit, Tuam Tshoj tus thawj coal-based 2-PH project. Tam sim no, ntau lub tuam txhab nrog cov phiaj xwm thee-rau-olefin tau npaj 2-PH cov chaw, suav nrog Yanchang Petroleum (80,000 tons / xyoo), Tuam Tshoj Coal Shaanxi Yulin (60,000 tons / xyoo), thiab Inner Mongolia Daxin (72,700 tons / xyoo).
INA feem ntau yog siv los tsim cov diisononyl phthalate (DINP), ib qho tseem ceeb ntawm cov khoom siv yas. Lub International Council of Toy Industries tau pom tias DINP tsis muaj kev phom sij rau cov menyuam yaus, thiab nws qhov kev thov loj hlob nyob rau xyoo tas los no tau ua rau muaj kev noj ntau ntxiv ntawm INA. DINP yog dav siv nyob rau hauv tsheb, cables, flooring, kev tsim kho, thiab lwm yam kev lag luam sectors. Thaum Lub Kaum Hli 2015, 50: 50 kev sib koom ua lag luam ntawm Sinopec thiab BASF tau pib tsim khoom ntawm 180,000-tuj-ib-xyoo INA cog hauv Maoming, Guangdong - tib lub chaw tsim khoom INA hauv Suav teb. Kev siv hauv tsev sawv ntawm ib ncig ntawm 300,000 tons, tawm hauv qhov sib txawv ntawm cov khoom siv. Ua ntej qhov project no, Tuam Tshoj cia siab rau tag nrho cov khoom xa tuaj rau INA, nrog rau 286,000 tons ntawm 2016.
Ob leeg 2-PH thiab INA yog tsim los ntawm reacting butenes los ntawm C4 ntws nrog syngas (H₂ thiab CO). Cov txheej txheem siv noble hlau complex catalysts, thiab cov synthesis thiab selectivity ntawm cov catalysts tseem ceeb bottlenecks nyob rau hauv domestic 2-PH thiab INA ntau lawm. Nyob rau hauv xyoo tas los no, ntau lub tuam txhab kev tshawb fawb hauv Suav teb tau ua tiav hauv INA cov cuab yeej tsim khoom thiab kev txhim kho catalyst. Piv txwv li, Tsinghua University's C1 Chemistry Laboratory tau siv cov octenes sib xyaw los ntawm butene oligomerization ua cov khoom noj thiab cov tshuaj rhodium catalyst nrog triphenylphosphine oxide li ligand, ua tiav 90% tawm los ntawm isononanal, muab lub hauv paus ruaj khov rau kev lag luam scale-up.
Post lub sij hawm: Lub Xya hli ntuj-14-2025