Dimethyl Carbonate (DMC): A ye fɛn koloma ye min tɛ baga dɔgɔya, min bɛ baara kɛ kosɛbɛ, walasa ka chimie sabatilen sɔrɔ

Fizikimiki jogo ani molekiyɔmu dɔnniyaw

Nafa minnu bɛ sɔrɔ jɔli la
Toxicité dɔgɔya : Ni LD5 (da la, soso) ye miligaramu 6400 ye kilogaramu kelen na, DMC ka fisa kosɛbɛ ka tɛmɛ laadala metilasi furaw kan (misali la, dimetil sulfate, LD5 = miligaramu 140/kg), ka kɛɲɛ ni EU REACH ka sariya ye min bɛ tali kɛ fɛnɲɛnamafagalanw na minnu tɛ ban.
A kɛcogo:
Metilasi : Metokisi kulu (−OCH3 ) bɛ kɛ sababu ye ka metili kulu jiginni kɛ cogo la min tɛ mɔgɔ tɔɔrɔ, ka baga wɛrɛw bila u nɔ na.
Karɔbɔli : Karbonili kulu (−CO−) bɛ ɛsitɛri ɲɔgɔn falen-falen ni aminolisi nɔgɔya, o bɛ polikarbonatiw dilanni dɛmɛ fosizɛni tɛ min na.
Solvency : Ni dielectric constant ye 3,1 ye, DMC bɛ ɲagami kosɛbɛ ni alikɔliw, ketɔnw ani ɛsitɛriw ye, ka sɔrɔ a yɔrɔ dɔ bɛ wuli ji la (1,6 g/100 mL 20°C la).

Fɛnɲɛnɛmako kunnafoniw jɔnjɔnw
DMC ka tobili hakɛ ye 90,5°C ye, o b’a to a bɛnnen don funteni cɛmancɛ walew ma ani furaji sɔrɔli, o bɛ fanga dɔgɔya 30% ka tɛmɛ bɛnzɛni kan. A ka sɔgɔsɔgɔninjɛ dɔgɔyalen (0,664 mPa・s) bɛ jibɔcogo ɲɛ baarakɛcogo la i n’a fɔ litiyamu batiri ɛlektrɔlitiw, ka sɔrɔ ni lafiɲɛbɔ entalpi ye 363 kJ/kg ye, o bɛ ja hakɛ danmadɔ sabati finiw ni nɛgɛw la. Kɔlɔsili: A ka bɔnɔgɔla hakɛ (3,1–20,5% vol) bɛ fiɲɛbɔlanw wajibiya 防爆 (bɔgɔbɔgɔli tɛ minnu na).

Industriw ka baarakɛcogo suguya caman

Sintezi Vert Innovations (ko kura minnu bɛ kɛ ka ɲɛsin sɛnɛfɛnw ma).
Polikarbonati (PC) sɔrɔli:
Fosizɛni tɛ min na : DMC bɛ ɲɔgɔn sɔrɔ ni bisifenɔli A (BPA) ye transɛsitɛri fɛ walasa ka difenili karɔbɔni (DPC) dilan, o kɔfɛ, o bɛ polimɛri kɛ ka kɛ PC ye. O fɛɛrɛ in bɛ atomiw ka baarakɛcogo ɲɛ fo ka se 92% ma (ni ni 65% ye fosizɛni siraw laadalama ye) ani ka baga kɔfɛfɛnw bɔ yen.
Fɛn dilannenw ka baarakɛcogo : PC resin minnu bɛ sɔrɔ o la, olu bɛ yeelen cili ≥90% di, funteni jiginni funteni bɛ se 135°C ma, ani 10% ka bɔgɔdaga fanga ka tɛmɛ PC sɔrɔlen fosizɛni kan, min bɛ kɛ ɛntɛrinɛti kan ani mobili ɲɛfɛlanw datugulanw na.
Furakɛcogo & Sɛnɛfɛnw:
Metilasi walew : A bɛ dimetil sulfate bila dusukun ni jolisiraw furaw (misali la, nifedipini) ni degun furaw (misali la, sɛrɛtralini) dilanni na, o bɛ sɔrɔ yiriwa ni 15–20% ye ni mɛtanɔli ye a kɔfɛfɛn kelenpe ye.
Karɔbɔli kɛcogo : A bɛ kɛ karɔbɔli (fɛnɲɛnamafagalan) dilanni na walasa ka HCl sɔgɔli bali, o bɛ musakaw dɔgɔya ni 25% ye.

Energy & Materials kura
Litiyamu Batiri Elektrolitiw:
DMC ni etilɛni karɔbɔni (EC) ni etilɛni metil karɔbɔni (EMC) faralen don ɲɔgɔn kan, a bɛ ɛlektroliti balannenw dilan minnu ka ionw ka se ka se 1,2 mS/cm ma. O bɛ batiri cycle ɲɛnamaya janya fo siɲɛ 1200 (seko marali ≥85%), ka bɛn EU ka batiri sariya (2023/0051) ma baga dɔgɔyali kama. A minɛna kaban Tesla ka batiri 4680 dilanni na.
Fɛn minnu bɛ se ka tiɲɛ ni fɛnɲɛnamaw ye:
Ni u ni poropilini ɔkisidi kopolimɛri kɛra ka kɛ poliporopilini karɔbɔni (PPC) ye, DMC basigilen fɛnw bɛ CO2 40% minɛ ka tiɲɛ kalo 6–12 kɔnɔ, ka plastiki nɔgɔw ɲɛnabɔ tabali minɛnw kɔnɔ minnu bɛ kɛ siɲɛ kelen ani sɛnɛ filimuw kɔnɔ.

Coatings & Adhesives (Kɔrifɛnw & Nɔrɔlanw).
Fɛnɲɛnɛmafagalanw : A bɛ toluyɛni/zilɛni bila mobili OEM pentiw nɔ na, ​​ka VOC hakɛ sɔrɔ ≤50 g/L (GB 24409-2020 sariyaw jukɔrɔ kosɛbɛ). Jalen waati bɛ dɔgɔya ka se sanga 2 ma, ni filimu gɛlɛya bɛ se 2H ma.
Formaldehyde tɛ minnu na : U bɛ kɛ mebɛri panɛri sirili la, DMC-based polyurethane nɔrɔlenw bɛ ni formaldehyde fu ye ≤0,01 mg/m3 (E0 grade), o bɛ IKEA dɛmɛ ka foromadehidi bɔli dɔgɔya ni tɔni 500+ ye san o san.

Lamini nafaw & Fɛɛrɛko gɛlɛyaw

Sigida sabatili ko ɲɛnamaw
Atomiki sɔrɔko : Fɛn minnu bɛ sɔrɔ kɔfɛ i n’a fɔ mɛtanɔli, olu bɛ se ka segin ka kɛ fɛn wɛrɛ ye distillation fɛ, o bɛ dɔ bɔ COD doni na ji nɔgɔlenw na ni 70% ye ni i y’a suma ni laadala taabolo ye.
Kabon minɛni : PC sintezi min tɛ fosizɛni ye, o bɛ kabɔn senna tigɛ ni 45% ye, k’a sɔrɔ DMC tɔni kelen-kelen bɛɛ min bɛ bɔ, o bɛ CO2 tɔni 0,6 ta ka bɔ kuran sɛnɛyɔrɔ gazi la, o bɛ CCU (kabɔn minɛni ni a baara) dɛmɛ.

Kokuradonni dancɛw
Musow ka musaka dɔgɔyali : CO2 sinsinni siratigɛ la (min bɛ baara kɛ ni mɛtanɔli, CO2 ani Pd-based catalysts ye) bɛ fɛnɲɛnamafagalan musakaw tigɛ ni 30% ye, ni Sinopec ka izini piloti ye kiloton sɛnɛfɛnw sɔrɔ.
Ultra-Purity Solutions : Membrane separation-adsorption technology bɛ DMC sɔrɔ min bɛ se ka kɛ ɛntɛrinɛti ye ni nɛgɛ ionw ye ≤1 ppb ani saniya ≥99.999%, o bɛ SEMI C87 sariyaw dafa semikɔndukiri saniyacogo la.
Lakanali Lakanali : DMC microencapsulé (min datugulen don SiO2 nanoshells kɔnɔ) bɛ flash point kɔrɔta fo ka se 60°C ma, TÜV Rheinland ye seere sɔrɔ a fɛ walasa ka bolifɛnw lakana.

Kɛrɛnkɛrɛnnenya la

Jogoɲumanya kɔlɔsili sɛbɛn

Mun na an bɛ an ka DMC sugandi?

Fanga koloma naani
Saniya Lakanali:
An ka transesterification kɛcogo min bɛ to senna ni distillation saba ye, o bɛ DMC min bɛ se ka kɛ izini kɔnɔ (≥99,5%) ani min bɛ kɛ ɛntɛrinɛti kan (≥99,99%), ni mɛtanɔli ye ≤100 ppm ye. Ko: Batiri kiliyan dɔ min bɛ baara kɛ n’an ka DMC ye, o ye 98,7% sɔrɔ charge-discharge fɔlɔ la (industry avg. 95%).
Seko ni dɔnko ye min bɛ se ka kɛ ka kɛɲɛ ni mɔgɔw sago ye:
Fura minnu dilannen don ka kɛɲɛ ni asidi hakɛ ye (≤0,001 mgKOH/g), ji (≤50 ppm), ani perokisidi (≤5 ppm). Misali la, an ye DMC asidi dɔgɔmanba (0,0005 mgKOH/g) labɛn walasa ka furakɛli kɛ ni asidi ye.
Sɔrɔko sɛrɛkili modɛli:
Metanɔli kɔfɛfɛnw bɛ segin ka kɛ singas (CO+H2) ye DMC dilanni kama, o bɛ se ka kɛ sababu ye ka 95% sɔrɔ fɛnw na ani ka CO2 bɔli dɔgɔya ni tɔni 3 ye DMC tɔni kelen kɔnɔ. Nɔgɔw foroko bɛ saniya CO2 supercritique fɛ walasa ka baara kɛ kokura ni 95% ye.
Duniya bɛɛ ka sariya labatoli:
A bɛ bɛn GB/T 1628-2020, ASTM D7056, ani JIS K 1551. GHS taamasiyɛnw ni MSDS minnu bɛ kɛ ka kɛɲɛ ni mɔgɔw sago ye, olu bɛ marabolow ka sariyaw dafa (misali la, Ɛndujamana BIS, Berezil INMETRO), o bɛ se ka kɛ sababu ye ka dumuniko kɛ sanga 72 kɔnɔ.

Piyɔniye ka kɛ Chimie Sustainable ye

Dimethyl Carbonate bɛ ka iziniw cogoya sɛmɛntiya a ka "toxic, effective, and recyclable" jogo fɛ. An b’an yɛrɛ bila taabolo kura ni furaw la minnu tɛ gazi bɔ, ka dɛmɛ don laban na ka taa a bila laban na k’a ta fɛnɲɛnamafagalanw na ka se baarakɛminɛnw ma. An ka DMC sugandili kɔrɔ ye ka jɛɲɔgɔnya kɛ ni sabatili ye — yɔrɔ min na, jiginɛ kelen-kelen bɛɛ bɛ nɔgɔya dɔgɔyali bila senkan, ka fanga dɔgɔya, ani ka fɛɛrɛ kuraw yiriwa, ka fara ɲɔgɔn kan ka siniɲɛsigi kemikoro jɛlen dɔ jɔ.