Acetoneyog ib tug tsis muaj kob, volatile kua nrog ib tug muaj zog tsw.Nws yog dav siv nyob rau hauv ntau yam lag luam, xws li tshuaj, roj av, tshuaj, thiab lwm yam. Acetone yuav siv tau raws li ib tug hnyav, ntxuav tus neeg sawv cev, nplaum, pleev xim rau thinner, thiab lwm yam nyob rau hauv no tsab xov xwm, peb yuav qhia txog kev tsim cov acetone.

Kev tsim cov acetone feem ntau suav nrog ob kauj ruam: thawj kauj ruam yog tsim acetone los ntawm acetic acid los ntawm catalytic txo, thiab theem thib ob yog cais thiab ntxuav cov acetone.

Hauv thawj kauj ruam, acetic acid yog siv los ua raw khoom, thiab catalyst yog siv los ua cov tshuaj tiv thaiv catalytic kom tau txais acetone.Cov catalysts uas nquag siv yog zinc hmoov, hlau hmoov, thiab lwm yam. Cov tshuaj tiv thaiv mis yog raws li nram no: CH3COOH + H2→CH3COCH3.Cov tshuaj tiv thaiv kub yog 150-250℃, thiab cov tshuaj tiv thaiv siab yog 1-5 MPa.Cov hmoov zinc thiab hlau hmoov yog rov tsim dua tom qab cov tshuaj tiv thaiv thiab tuaj yeem siv tau ntau zaus.

Hauv qib thib ob, qhov sib xyaw uas muaj acetone raug cais thiab ua kom huv.Muaj ntau txoj hauv kev rau kev sib cais thiab purifying acetone, xws li distillation method, absorption method, extraction method, etc. Ntawm lawv, distillation method yog txoj kev siv ntau tshaj plaws.Txoj kev no siv cov ntsiab lus sib txawv ntawm cov tshuaj sib cais los ntawm distillation.Acetone muaj qhov kub ntawm qhov kub thiab txias.Yog li ntawd, nws tuaj yeem raug cais tawm ntawm lwm yam khoom los ntawm kev distillation nyob rau hauv lub tshuab nqus tsev siab ntawm qhov kub thiab txias.Tom qab ntawd cov acetone sib cais yog xa mus rau cov txheej txheem tom ntej rau kev kho mob ntxiv.

Hauv cov ntsiab lus, kev tsim cov acetone suav nrog ob kauj ruam: catalytic txo cov acetic acid kom tau txais acetone thiab kev sib cais thiab kev huv ntawm acetone.Acetone yog cov khoom siv tseem ceeb hauv cov roj av, tshuaj, tshuaj thiab lwm yam lag luam.Nws muaj ntau yam kev siv hauv kev lag luam thiab lub neej.Ntxiv rau cov txheej txheem saum toj no, muaj lwm txoj hauv kev rau kev tsim cov acetone, xws li fermentation method thiab hydrogenation method.Cov txheej txheem no muaj lawv tus kheej cov yam ntxwv thiab qhov zoo ntawm kev siv sib txawv.