Kev tsim khoom ntawm Acetate

Siv cov catalysts tauj dua tshiab, qib qis dilute hydrocarbons xws li propylene, 1-butene, 2-butene, thiab isobutylene ncaj qha ntxiv rau acetic acid lossis lwm cov carboxylic acids rau esterification los tsim cov isopropyl acetate, sec-butyl. acetate, isobutyl acetate, thiab lwm yam acetate esters, thiab lwm yam carboxylic acid esters. Tam sim no, cov khoom lag luam nrog kev lag luam dav tshaj plaws yog isopropyl acetate thiab sec-butyl acetate vinegar.
Ethyl acetate hmoov
Ethyl acetate (EA) muaj cov solubility zoo heev thiab tuaj yeem siv los ua cov kuab tshuaj kom qhuav sai. Ethyl acetate muaj peb qib: 85 feem pua ​​​​88 feem pua ​​​​, 99 feem pua ​​​​, thiab 99.5 feem pua, nrog rau qib universal ntawm 99 feem pua. Ethyl acetate feem ntau yog siv los ua cov kuab tshuaj hauv cov txheej txheem (xim thiab enamels), inks, thiab cov nplaum nplaum. Nws kuj tseem tuaj yeem siv los ua cov txheej txheem hnyav rau kev siv tshuaj thiab cov organic tshuaj synthesis, thiab vim tias ethyl acetate yog cov khoom siv ntuj tsim nyob hauv ntau cov txiv hmab txiv ntoo. Yog li ntawd, muaj ntau daim ntawv thov nyob rau hauv kev lag luam khoom noj khoom haus, uas yuav siv tau raws li seasoning agents thiab txheej txheem extractants raws li kev txheeb cais. Ethyl acetate, raws li cov kuab tshuaj zoo heev, yog maj mam hloov qee cov kuab tshuaj qis kawg thiab muaj peev xwm txhim kho tau zoo.
1.1 Kev Tsim Kho Tshuab
Muaj plaub txoj hauv kev tseem ceeb rau kev sib xyaw ethyl acetate: ib qho yog acetic acid esterification txoj kev (acetic acid thiab ethanol undergo esterification cov tshuaj tiv thaiv nyob rau hauv catalysis ntawm concentrated sulfuric acid); Qhov thib ob txoj kev yog acetaldehyde condensation (ob lub molecules ntawm acetaldehyde undergo Tishchenko catalyzed condensation cov tshuaj tiv thaiv nrog alkoxides nyob rau hauv lub catalysis ntawm ethanol aluminium), txoj kev thib peb yog ethanol dehydrogenation disproportionation, thiab txoj kev plaub yog ethylene ntxiv (ethylenethetic acid ncaj qha nyob rau hauv synthesis ntawm ethylene acetic acid. catalysis ntawm heteropoly acids).
1.2 Kev Ntsuam Xyuas Kev Peev Xwm Ntiaj Teb
Hauv xyoo 2009, lub ntiaj teb tag nrho cov peev txheej tsim tawm ntawm ethyl acetate yog kwv yees li 1.78 lab tons. Tag nrho cov zis yog kwv yees li 1.62 lab tons.
1.3 Kev Ntsuam Xyuas Kev Lag Luam Hauv Tsev
Xyoo 1990, kev tsim muaj peev xwm ntawm ethyl acetate hauv Suav teb tsuas yog 40000 t / a. Xyoo 2001, nws mus txog 30000 t / a. Nyob rau hauv 2005 thiab 2006, lub peev xwm ntau lawm mus txog 87000 t / a thiab 133000 t / a. Nyob rau hauv 2009, lub peev xwm ntau lawm mus txog 1.42 lab t / a.
Butyl acetate hmoov
Butyl acetate muaj plaub isomers, tab sis tsuas yog n-butyl acetate thiab isobutyl acetate yog qhov tseem ceeb tshaj plaws hauv kev lag luam. Butyl acetate feem ntau yog siv los ua cov kuab tshuaj rau cov xim. Vim nws zoo flowability thiab khawb kuj, nws yuav siv tau nyob rau hauv nyias zaj duab xis txheej resins. Piv txwv xws li nitrocellulose, butyl acetate cellulose, polystyrene, thiab methyl methacrylate resin. Nws tseem tuaj yeem siv dav los ua cov kuab tshuaj rau kev tsim cov tawv nqaij, textiles thiab plastics, ua cov extractant rau roj thiab tshuaj, nrog rau cov txuj lom thiab cov khoom siv hluavtaws. Butyl acetate kuj tseem siv tau los ua tus neeg ua kom lub cev qhuav dej. Lawv tuaj yeem tsim ternary azeotropes nrog dej.