Cov khoom siv yooj yim tshaj plaws yog PTA, tseem hu ua ntshiab terephthalic acid. siv feem ntau hauv kev tsim cov khoom polyester. Ob pawg ntawm polyester siv - "fiber" thiab "non-fiber" - tuaj yeem ua tau. Kev lag luam textile yog thawj tus neeg siv cov fibers, thaum cov yeeb yaj kiab, ntim, cov khoom siv insulating, thiab engineering plastic industries yog thawj cov neeg siv tsis yog fibers. Lawv yog cov adaptable heev, ib tug yuav hais. Nrog ib ncig ntawm 56 feem pua ntawm PTA thoob ntiaj teb kev tsim khoom thiab kev siv, kuv lub teb chaws coj lub ntiaj teb hauv ob pawg. Nyob rau hauv xyoo tas los no, kuv lub teb chaws txoj kev cia siab rau txawv teb chaws PTA tau ploj zuj zus ntxiv nyob rau hauv rooj plaub ntawm kev sib kis thoob ntiaj teb loj heev. PTA sector hauv tsev kuj tau ntsib hluav taws vim qhov tshwm sim, thiab kev siv cov khoom siv titanium tau nce ntxiv.
Qhov tshwj xeeb corrosion kuj ntawm titanium alloys thiab corrosive ib puag ncig uas PTA pab kiag li lawm raug tau ua titanium alloys cov khoom xaiv rau PTA li. Nws tuaj yeem tiv taus corrosion hauv ntau qhov xwm txheej uas tsim kev puas tsuaj rau PTA cov khoom siv. Titanium feem ntau yog ua haujlwm nyob rau hauv PTA ntaus ntawv raws li kev tiv thaiv, nrog rau hauv daim ntawv ntawm titanium-lined thiab tag nrho-titanium khoom. Cov khoom siv titanium-lined yog ua los ntawm carbon steel rau sab nraud kom dais qhov nruab nrab siab, thiab titanium hauv ob sab phlu yog siv los tiv thaiv corrosion ntawm nruab nrab. Tag nrho-titanium qhov chaw yog tag nrho ua los ntawm titanium los tiv thaiv corrosion thiab siab ntawm nruab nrab.
Cov khoom siv titanium siv hauv PTA feem ntau suav nrog peb ntu: chav oxidation, crystallization unit, thiab hnyav rov qab chav tsev. Qhov chaw corrosion loj tshaj plaws hauv chav oxidation yog oxidation reactor thiab sab saum toj 3-theem condenser. Yog li ntawd, tag nrho cov khoom siv nyob rau hauv kev sib cuag nrog cov txheej txheem nruab nrab ntawm no yog ua los ntawm titanium. Qhov feem ntau corrosive ib puag ncig ntawm chav tsev crystallization yog crystallizer thiab sab saum toj condenser. Cov khoom siv hauv qhov chaw no yog ua los ntawm titanium alloy cov ntaub ntawv uas ua tau raws li qhov kev ua tau zoo. Cov raj thiab cov tais hauv lub reboiler ntawm lub cev qhuav dej ntau tshaj 120 degrees hauv cov kuab tshuaj rov qab yog txhua yam ua los ntawm titanium alloy cov ntaub ntawv ntawm cov qib uas cuam tshuam.
Nws tuaj yeem pom tias titanium muaj ntau yam siv hauv PTA cov cuab yeej, thiab cov nyiaj ntau heev. Yog li ntawd, thaum muaj kev sib kis mob hnyav nyob rau hauv ob xyoos dhau los, kev lag luam titanium tseem tuav lub zog loj hlob sai, uas tsis tuaj yeem sib cais los ntawm kev loj hlob sai ntawm kev lag luam hauv PTA.
