Methylene Chloride yog ib qho tseem ceeb ntawm kev lag luam hnyav, thiab nws txoj kev loj hlob ntawm kev lag luam thiab kev tshawb fawb kev tshawb fawb yog cov ntsiab lus tseem ceeb. Kab lus no yuav qhia txog nws qhov kev txhim kho tshiab los ntawm plaub yam: kev ua lag luam qauv, kev tswj hwm kev tswj hwm, tus nqi sib txawv, thiab kev tshawb fawb tshawb fawb tshiab.
Kev Ua Lag Luam: Kev lag luam thoob ntiaj teb yog cov concentrated, nrog rau peb cov neeg tsim khoom sab saum toj (xws li Juhua Group, Lee & Man Chemical, thiab Jinling Group) tuav cov lag luam sib koom ua ke ntawm kwv yees li 33%. Asia-Pacific cheeb tsam yog lub lag luam loj tshaj plaws, suav txog li 75% ntawm cov khoom.
Regulatory Dynamics:US Environmental Protection Agency (EPA) tau tshaj tawm txoj cai zaum kawg nyob rau hauv Txoj Cai Tswj Tshuaj Tiv Thaiv Kab Mob (TSCA) txwv tsis pub siv cov tshuaj methylene chloride hauv cov neeg siv khoom xws li cov xim strippers thiab ua rau muaj kev txwv nruj rau kev siv hauv kev lag luam.
Nqe Trends: Thaum Lub Yim Hli 2025, vim muaj kev lag luam siab ua haujlwm ua rau muaj kev txaus siab, nrog rau lub caij nyoog rau kev thov thiab kev yuav khoom tsis txaus siab hauv qab, cov nqi ntawm qee cov tuam txhab poob qis dua 2000 RMB / tuj.
Kev lag luam xwm txheej:Txij lub Ib Hlis Ntuj txog Lub Tsib Hlis 2025, Tuam Tshoj cov khoom xa tawm ntawm methylene chloride tau nce ntau (xyoo-rau-xyoo + 26.1%), feem ntau yog nyob rau sab hnub tuaj Asia, Is Nrias teb, thiab lwm thaj chaw, uas pab txo qis cov khoom siv hauv tsev.
Frontiers hauv Kev Tshawb Fawb Txog Kev Tshawb Fawb Tseeb
Hauv kev tshawb fawb txog kev tshawb fawb, kev tshawb fawb txog methylene chloride thiab cov tshuaj muaj feem cuam tshuam tau nce mus rau cov lus qhia ntsuab thiab muaj txiaj ntsig zoo dua. Nov yog ob peb cov lus qhia tseem ceeb:
Green Synthesis Methods:Pab pawg tshawb fawb los ntawm Shandong University of Technology tau tshaj tawm txoj kev tshawb fawb tshiab nyob rau lub Plaub Hlis 2025, tawm tswv yim tshiab ntawm "magnetically driven redox." Cov thev naus laus zis no siv lub teb sib nqus sib nqus los ua kom muaj kev cuam tshuam electromotive quab yuam nyob rau hauv cov hlau conductor, yog li tsav cov tshuaj tiv thaiv. Txoj kev tshawb no tau cim thawj daim ntawv thov ntawm lub tswv yim no hauv kev hloov pauv hlau catalysis, ua tiav qhov kev sib txuas ntawm kev sib txuas ntawm tsawg reactive aryl chlorides nrog alkyl chlorides. Qhov no muab txoj hauv kev tshiab rau kev ua kom muaj cov tshuaj lom neeg tsis muaj zog (xws li C-Cl bonds) nyob rau hauv cov xwm txheej me me, muaj peev xwm rau kev siv dav.
Separation Process Optimization:Hauv kev tsim tshuaj lom neeg, kev sib cais thiab kev ua kom huv yog cov kauj ruam tseem ceeb ntawm kev siv lub zog. Qee qhov kev tshawb fawb tsom mus rau kev tsim cov cuab yeej tshiab rau kev sib cais cov tshuaj tiv thaiv los ntawm methylene chloride synthesis. Qhov kev tshawb fawb no tau tshawb fawb siv methanol ua tus kheej-extractant los cais cov sib tov ntawm dimethyl ether-methyl chloride nrog cov tsis tshua muaj volatility, aiming los txhim kho kev sib cais efficiency thiab optimize cov txheej txheem tsis.
Tshawb nrhiav cov ntawv thov hauv Cov Txheej Txheem Tshiab Tshiab:Txawm hais tias tsis ncaj qha cuam tshuam nrog methylene chloride, txoj kev tshawb fawb txog kev sib sib zog nqus eutectic solvents (DES) luam tawm hauv PMC thaum Lub Yim Hli 2025 yog qhov tseem ceeb. Txoj kev tshawb no tau muab kev nkag siab tob rau hauv qhov xwm txheej ntawm kev sib cuam tshuam ntawm molecular hauv cov kuab tshuaj. Kev nce qib hauv cov thev naus laus zis ntsuab hnyav tuaj yeem, nyob rau lub sijhawm ntev, muaj peev xwm tshiab los hloov qee yam tshuaj lom neeg cov kuab tshuaj, suav nrog methylene chloride.
Hauv cov ntsiab lus, kev lag luam methylene chloride yog tam sim no nyob rau hauv ib lub sij hawm hloov pauv uas muaj ob qho tib si hauv lub sijhawm thiab cov teeb meem.
Kev sib twfeem ntau tau cuam tshuam los ntawm cov kev cai ib puag ncig nruj zuj zus (tshwj xeeb tshaj yog nyob rau hauv kev lag luam xws li Europe thiab Asmeskas) thiab qhov xav tau kev cog lus hauv qee qhov chaw siv tshuaj (xws li cov xim pleev xim).
Muaj cib fim, txawm li cas los xij, pw hauv qhov kev xav tau ruaj khov nyob rau hauv cov haujlwm uas tsis tau pom muaj kev hloov pauv zoo meej (xws li tshuaj thiab tshuaj synthesis). Nyob rau tib lub sijhawm, kev txhim kho txuas ntxiv ntawm cov txheej txheem ntau lawm thiab kev nthuav dav ntawm kev lag luam xa tawm kuj tseem muab lub zog rau kev lag luam txoj kev loj hlob.
Kev txhim kho yav tom ntej yuav tsum tau lean ntxiv rau kev ua haujlwm siab, siab dawb huv cov khoom tshwj xeeb thiab kev tsim kho thev naus laus zis raws li cov ntsiab lus ntawm ntsuab chemistry.
Post lub sij hawm: Sep-26-2025