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Ethyl methyl carbonateyog ib qho organic compound nrog cov tshuaj mis C5H8O3, tseem hu ua EMC. Nws yog ib qho tsis muaj xim, pob tshab, thiab volatile kua nrog tsawg toxicity thiab volatility. EMC feem ntau yog siv ua raw khoom hauv cov teb xws li cov kuab tshuaj, coatings, plastics, resins, txuj lom, thiab tshuaj. Nws kuj tseem siv tau los npaj lwm cov organic compounds, xws li polycarbonate. Hauv kev tsim khoom lag luam, kev tsim khoom ntawm EMC feem ntau siv ester pauv reaction lossis carbonation esterification reaction.

Khoom npe: Ethyl methyl carbonate

CAS:623-53-0

Cov mis mos molecular: C4H8O3

EINECS: 433-480-9

Cov ntawv thov hauv qab ntawm EMC feem ntau yog cov roj teeb lithium-ion electrolyte, uas yog ib qho ntawm plaub cov ntaub ntawv tseem ceeb ntawm cov roj teeb lithium-ion thiab raug hu ua "ntshav" ntawm cov roj teeb.

EMC muab faib ua ob pawg raws li kev huv: qib kev lag luam methyl ethyl carbonate (99.9%) thiab qib roj teeb EMC (99.99% lossis siab dua). Qib kev lag luam EMC feem ntau yog siv rau hauv kev lag luam organic synthesis thiab cov kuab tshuaj; Cov txheej txheem roj teeb qib EMC xav tau cov kev xav tau siab dua thiab feem ntau yog siv ua cov kuab tshuaj rau lithium-ion roj teeb electrolytes. Vim nws qhov me me steric hindrance thiab asymmetry hauv cov qauv, nws tuaj yeem pab txhawb kev nce qib ntawm lithium ions solubility, txhim kho qhov ceev capacitance thiab them ntawm lub roj teeb, thiab tau dhau los ua ib qho ntawm tsib lub kuab tshuaj tseem ceeb rau lithium-ion roj teeb electrolytes.

Cov teb thov ntawm EMC feem ntau yog lithium-ion roj teeb electrolyte, uas yog ib qho ntawm plaub cov ntaub ntawv tseem ceeb ntawm lithium-ion roj teeb thiab raug hu ua "ntshav" ntawm roj teeb. Nyob rau hauv xyoo tas los no, nrog rau kev txhim kho sai ntawm kev lag luam tsheb fais fab tshiab, Tuam Tshoj txoj kev lag luam electrolyte roj teeb lithium-ion tau nkag mus rau lub sijhawm ntawm kev txhim kho sai. Tus nqi hauv zos ntawm electrolytes tau nce ntxiv ntau, thiab kev hloov pauv ntawm kev xa khoom tau ua tiav, tsav tsheb kev loj hlob sai ntawm kev thov rau EMC hauv Tuam Tshoj kev lag luam. Raws li "2023-2027 Tuam Tshoj EMC Kev Lag Luam Kev Tshawb Fawb tob thiab Kev Txhim Kho Kev Cia Siab Daim Ntawv Qhia" tso tawm los ntawm Xinsijie Kev Lag Luam Tshawb Fawb Chaw, xyoo 2021, qhov kev thov rau EMC hauv Tuam Tshoj yog 139500 tons, nce txhua xyoo ntawm 94.7%.

Lub lag luam rauEMCtau qhia txog kev loj hlob ruaj khov hauv ob peb xyoos dhau los. Qhov no feem ntau yog vim muaj kev siv dav dav ntawm EMC hauv ntau yam kev siv hauv kev lag luam, xws li cov kuab tshuaj, cov tshuaj pleev xim, cov yas, cov resins, cov txuj lom, thiab cov tshuaj. Tsis tas li ntawd, nrog rau kev txhim kho ntawm kev lag luam thoob ntiaj teb thiab kev txhim kho ntawm cov neeg lub neej, qhov kev thov rau EMC kuj maj mam nce ntxiv.

Tam sim no, cov cheeb tsam tseem ceeb ntawm kev lag luam EMC suav nrog thaj av Asia Pacific, Tebchaws Europe, thiab North America. Thaj av Asia Pacific yog thaj chaw tseem ceeb ntawm kev lag luam methyl ethyl carbonate, nrog rau Tuam Tshoj, Nyiv Pooj, thiab Kaus Lim Qab Teb yog cov neeg tsim khoom thiab cov neeg siv khoom tseem ceeb ntawm EMC. Kev lag luam rau EMC hauv Tebchaws Europe thiab North America kuj maj mam loj hlob, nrog rau Lub Tebchaws Yelemees, United Kingdom, Tebchaws Meskas, thiab Canada yog cov neeg siv khoom tseem ceeb ntawm EMC.

Yav tom ntej, kev loj hlob ntawm kev lag luam EMC yuav raug cuam tshuam los ntawm kev lag luam thoob ntiaj teb thiab kev lag luam. Nrog rau kev nce qib ntawm cov lag luam tshiab thiab kev nce qib thev naus laus zis tas mus li, qhov kev thov rau EMC hauv kev lag luam yuav txuas ntxiv mus. Tsis tas li ntawd, kev tiv thaiv ib puag ncig thiab kev txhim kho kom ruaj khov kuj tseem yuav dhau los ua cov qauv tseem ceeb hauv kev lag luam EMC, txhawb kev tsim khoom thiab kev siv EMC kom zoo dua qub thiab ruaj khov.