Hauv kev ua teb ntawm cov yas ua, PVC (polyvinyl chloride) cov roj nplua nyeem yog qhov tseem ceeb ntxiv uas cuam tshuam rau kev ua haujlwm thiab cov khoom lag luam tiav. Nrog rau kev loj hlob thoob ntiaj teb xav tau rau muaj txiaj ntsig thiab ib puag ncig cov phooj ywg yas ntxiv, nws yog qhov tshwj xeeb rau cov qauv kev lag luam kom nkag siab cov txheej txheem ntau lawm ntawm hom kev tsim khoom siv ntawm PVC roj nplua nyeem. Kab lus no yuav qhia tau cov txheej txheem ntau lawm ntawm cov txheej txheem ntau lawm ntawm cov khoom siv raw ua tiav cov khoom ntim.
RAW KHOOM npaj thiab sib tov
Kev tsim cov khoom siv ntawm cov roj ua kua roj ntshav tau pib nrog cov kev sib npaug ntawm cov khoom sib tw. Lub ntsiab cov ntaub ntawv nyoos xws li roj muaj roj (xws li roj ntxhia (xws li cov tshuaj ntxuav hluavtaws (xws li cov tshuaj tiv thaiv kab mob antioxidants, stabilizers). Ua ntej tsim khoom, cov ntaub ntawv raw yuav tsum raug kuaj nruj rau qhov zoo kom ntseeg tau tias kev coj dawb huv thiab kev ruaj khov raws cov qauv. Tom qab, cov ntaub ntawv raw yog muab tso rau hauv lub siab- muag ceev} Cov tshuaj ceev ceev thiab sib xyaw ua ke ntawm qhov kub thiab txias ua ke.
Cov tshuaj tiv thaiv thiab hluavtis
Tom qab ua ntej pib ua tiav, theem tshwm sim pib. Ua raws li cov roj nplua nyeem (xws li cov roj nplua nyeem lossis sab nrauv roj nplua nyeem), cov txheej txheem ntau lawm yuav muaj tshuaj lom neeg tshuaj lossis kho lub cev. Piv txwv li, cov roj ntsha roj ntsha xav tau los ua ke cov roj fatty acids thiab cawv los ntawm cov tshuaj tiv thaiv esterification raws li kev ua ntawm catalysts; Thaum cov xab npum hlau yuav tsum tau tsim los ntawm kev tawm tsam nruab nrab ntawm cov hlau oxides thiab fatty acids. Qhov kub thiab txias, lub zog thiab cov kev xav tau lub sijhawm yuav tsum tau ua kom meej thaum lub sij hawm cov tshuaj tiv thaiv kom ntseeg tau tias qhov kev ruaj ntseg ntawm cov khoom molecular qauv.
Refining thiab Post -} ua
Cov tshuaj tiv thaiv cov khoom lag luam yuav tsum tau ua kom zoo kom tshem tawm cov ntaub ntawv raw thiab los ntawm - cov khoom. Cov hau kev sib xws suav nrog nqus tsev, pom thiab crystallization. Cov roj nplua nyeem tau zoo tseem yuav tsum tau ua kom zoo rau kev ua tau zoo, xws li ntxiv cov tshuaj tiv thaiv kab mob kom txuas ntxiv rau lub txee lub neej, lossis cov kua dej {}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} Qee cov khoom kuj yuav tsum tau granulated los yog hmoov kom tau raws li kev ua haujlwm sib txawv.
Kev Soj Ntsuam Zoo thiab Ntim
Cov khoom tiav tau tas yuav tsum dhau nruj zoo soj ntsuam kev soj ntsuam, suav nrog cov kev ntsuas kev ua tiav ntawm lubrication thiab kev soj ntsuam ib puag ncig. Qualified products are finally packaged, usually in moisture-proof and light-proof plastic barrels or cardboard barrels to ensure safe transportation and storage.
Cov txheej txheem ntau lawm ntawm hom tshuaj khov kho kev siv hluav taws xob thiab kev ua haujlwm ntawm lub cev ntawm nws cov txheej txheem ncaj qha cuam tshuam thiab kev sib tw ua lag luam. Raws li ib puag ncig cov kev cai ua cov txheej txheem nce ntxiv, cov txheej txheem ntau lawm yuav ua rau muaj kev lag luam tsawg thiab biodegrurity kom tau raws li kev lag luam xav tau rau kev loj hlob.
