Muaj plaub txoj hauv kev tseem ceeb ntawm trimeric anhydride: trimitylene kua theem cua oxidation txoj kev (MC txoj kev), trimitylene kua theem nitric acid oxidation txoj kev, trimitylene gaseous theem cua oxidation txoj kev thiab m-xylene formaldehyde kua theem cua oxidation txoj kev (MGC txoj kev), ntawm uas trimitylene kua theem cua oxidation txoj kev yog lub ntsiab ntau lawm txoj kev nyob rau hauv lub ntiaj teb no, accounting rau txog 96% ntawm lub ntiaj teb no muaj khoom siv. Trimethylbenzene kua theem cua oxidation txoj kev yog tam sim no dav siv ib feem anhydride ntau lawm txheej txheem, cov txheej txheem yog thawj zaug tsim los ntawm Middle Ages (Mid-century) tuam txhab nyob rau hauv lub tebchaws United States, hu ua MC txoj kev, yog raws li nyob rau hauv trimethylbenzene raw khoom, acetic acid li. ib qho hnyav, nrog huab cua ua oxidizer, trimethylbenzene oxidation rau trimeric acid, trimeric acid thiab tom qab ntawd lub cev qhuav dej los tsim trimeric anhydride. Cov txheej txheem muaj qhov zoo ntawm cov khoom siv yooj yim, tsis siv cov khoom siv raw thiab kev ua haujlwm rau pej xeem, me me corrosion thiab yooj yim rau kev daws teeb meem "peb khib nyiab", tab sis nws kuj muaj qhov tsis zoo ntawm cov cuab yeej siv loj loj, nyuaj rau rov qab acetic acid. thiab nyuaj rau tshem tawm cov kab bromine ions hauv cov khoom. Lub vapour-theem cua oxidation ntawm tritylene yog tsim los ntawm Japanese Catalyst Chemical Industry Co., Ltd. nyob rau xyoo 1970s, siv cov tebchaw uas muaj vanadium, titanium thiab phosphorus ua catalysts oxidize tritylene rau trimeric acid, uas tom qab ntawd lub cev qhuav dej los tsim trimeric anhydride. . Tsis muaj corrosive nruab nrab hauv cov txheej txheem oxidation, kev ua haujlwm siab, feem ntau ntawm cov cuab yeej tuaj yeem ua tiav los ntawm cov pa roj carbon zoo tib yam, uas txo cov peev txheej ntawm cov khoom siv. Txawm li cas los xij, nws kuj muaj qhov tsis zoo ntawm cov khoom siv tsis zoo ntawm cov khoom siv hluav taws xob tsis zoo thiab cov txiaj ntsig qis, yog li nws tsis muaj daim ntawv thov kev lag luam. Tritylene kua theem nitric acid oxidation txoj kev tsim los ntawm Saarbergwerk tuam txhab nyob rau hauv lub teb chaws Yelemees nyob rau hauv lub xyoo 1970s thiab ua tiav kev tsim khoom, yog ntxiv tritylene rau dilute nitric acid tov rau oxidation cov tshuaj tiv thaiv, tom qab sib cais thiab qhuav crystallization kom tau tritylene. Cov txheej txheem yog yooj yim, yooj yim rau kev khiav lag luam, siab yield, yield mus txog 90%, cov khoom purity ncav cuag 98.5%, tab sis cov txheej txheem muaj corrosion loj heev rau cov khoom, siab cov khoom yuav tsum tau ntawm cov khoom, siab ntau lawm nqi. Cov kua theem cua oxidation txheej txheem ntawm m-xylene formaldehyde yog tsim los ntawm Mitsubishi Gas Chemical tuam txhab nyob rau hauv Nyiv nyob rau hauv 1985. Nws yog ib tug tshiab txheej txheem ntawm npaj aromatic aldehyde nrog m-xylene li raw khoom thiab ces siv dej raws li hnyav rau oxidize trimeric anhydride nrog cua ua kua theem. Qhov zoo ntawm cov qauv no yog cov khoom siv raw khoom qis thiab yooj yim kom tau, cov txheej txheem tshuaj tiv thaiv tsis tu ncua thiab kev tswj tsis siv neeg. Txawm li cas los xij, nws kuj muaj qhov tsis zoo ntawm qhov hnyav corrosion ntawm cov cuab yeej siv thiab siv cov khoom siv hlau muaj txiaj ntsig zoo. Hauv kev lag luam thoob ntiaj teb, tsuas yog Nyiv Mitsubishi Gas Chemical Company 15, 000 tons / xyoo khoom siv m-dimethylbenzaldehyde kua theem cua oxidation txoj kev, thiab tag nrho cov tuam txhab tsim khoom siv tag nrho cov tri-toluene kua theem cua oxidation txoj kev.