I-Methyl Acetate: Isinyibilikisi Samakhemikhali Esiyisihluthulelo Esiphansi “Esiguquguqukayo” Siqala Ukuguqulwa Okuluhlaza

Emndenini obanzi wemikhiqizo yamakhemikhali, i-methyl acetate ingase ingabi idumile njenge-ethyl acetate yayo "yomzala". Kodwa njenge-solvent eyisisekelo yezinto eziphilayo, ibilokhu idlala indima ethule kodwa ebalulekile ekumbozweni, kuyinki, ekukhiqizweni kwesikhumba nakweminye imikhakha. Muva nje, ngemva kokuthuthuka kobuchwepheshe obuhamba phambili emhlabeni, i-methyl acetate isiqalile ukuvela njalo ezindabeni zezimboni, futhi amathuba ayo okusetshenziswa okuluhlaza okotshani, okunobungani nemvelo ayahlolwa kabusha.

Iphrofayili Yomkhiqizo: Kuyini i-Methyl Acetate?

I-Methyl acetate, eyaziwa nangokuthi i-acetic acid methyl ester, iyinhlanganisela yezinto eziphilayo enefomula yama-molecule C₃H₆O₂.

Uma izinga lokushisa legumbi kanye nengcindezi, luwuketshezi olungenambala, olubonakalayo olunephunga elimnandi kanye nokuguquguquka okukhulu.

Izakhiwo ze-Physicochemical

I-Methyl acetate inezinga eliphansi lokubila elingu-57.8°C kuphela, okwenza kube lula kakhulu ukuyibuyisa nokuyihlanza ngokuyihluza ekukhiqizweni kwezimboni.

Iyancibilika kancane emanzini, kodwa ingaxubana nezinyibilikisi eziningi eziphilayo (njenge-ethanol ne-diethyl ether) ngazo zonke izilinganiso.

Isakhiwo sama-molecular se-Methyl Acetate

Izinhlelo Eziyinhloko

Njenge-solvent esebenza kahle kakhulu, i-methyl acetate inokusetshenziswa okubanzi:

Umkhakha Wezimbozo Noyinki:Isinyibilikisi esibalulekile se-nitrocellulose, ama-resins, amafutha, njll., esisetshenziswa kabanzi ekukhiqizweni kwezinto ezincibilikisayo, uyinki kanye nopende.

Isikhumba Nezindwangu Zokwenziwa:Kusetshenziswa njengesinyibilikisi ukusiza ukwakheka nokucubungula izinto ekukhiqizweni kwesikhumba sokwenziwa kanye nokuqedwa kwendwangu.

Ama-flavour nama-Reagent:Kumakhemikhali amahle, i-methyl acetate emsulwa kakhulu isetshenziswa ekuhlanganiseni ukunambitheka kanye njenge-reagent yamakhemikhali elebhu.

Izindaba Zakamuva: Ukuqeda Ama-Monopolies, I-Methyl Acetate Iba Yimpahla Eshisayo

Sekuyisikhathi eside, i-methyl acetate ibilokhu iphathwa njengesithako esivamile ochungechungeni lwemboni yamakhemikhali, ngenani eliphansi kakhulu. Kodwa-ke, izindaba zentuthuko yezobuchwepheshe eziqhubekayo zishintshe ngokuphelele lesi simo.

Ngokusho kwemibiko yakamuva yemboni ka-2026, isitshalo sokuqala sokuhlola emhlabeni sokukhiqiza i-methyl methacrylate (MMA) kusuka ku-methyl acetate kanye ne-formaldehyde - esakhiwe ngokuzimela yinkampani yezobuchwepheshe eseBeijing - siqaliswe ngempumelelo.

Izinto Ezivelele Zobuchwepheshe: Umzila Omusha Wokuqala Osekelwe ku-C1

Lobu buchwepheshe bunyakazise imboni ngoba budala umzila omusha wokukhiqiza.

Ubuchwepheshe bendabuko be-MMA (isb., inqubo ye-acetone cyanohydrin, inqubo ye-isobutylene) buthembele kakhulu ezitshalweni ze-petrochemical, futhi inqubo ye-Alpha encintisana kakhulu ngokwezomnotho ibilokhu ilawulwa phesheya kwezilwandle isikhathi eside.

Inqubo entsha yenkampani isebenzisa i-methyl acetate kanye ne-formaldehyde njengezinto zokusetshenziswa ukukhiqiza i-MMA enenani eliphezulu.

Izinzuzo Ezinkulu Zezomnotho

I-Methyl acetate isebenza njengezinto ezisetshenziswayo eziyinhloko kulokhu kusabela.

Impumelelo yalobu buchwepheshe ayigcini nje ngokunikeza iShayina ubuchwepheshe bokukhiqiza i-MMA bokuqala emhlabeni wonke, kodwa futhi yandisa uchungechunge lwezimboni ze-methanol futhi ivula isidingo esikhulu esisha se-methanol ne-methyl acetate engenhla.

Kubikwa ukuthi umkhiqizo ohlukanisiwe futhi ocwengisisiwe ovela esitshalweni sokuhlola usuvele uhlangabezana nezinga le-premium elijwayelekile likazwelonke laseShayina. Ucwaningo lokubona ukuthi kungenzeka yini iphrojekthi ye-MMA engama-t ayi-100 000 luphinde lubonise inzuzo enkulu iyonke.

Ngamafuphi, i-methyl acetate ayiseyona nje i-solvent - isibe yisithako esiyinhloko sezinto ezisezingeni eliphezulu njengengilazi yemvelo kanye nepulasitiki ethuthukisiwe.

Izitayela Zemboni: Ukulinganisela Ukukhula Kwemakethe kanye Nokulawulwa Kokuphepha

Iqhutshwa yintuthuko yezobuchwepheshe, imakethe ye-methyl acetate ingena emjikelezweni omusha wokukhula. Ngesikhathi esifanayo, ukubhekwa kokuphepha kokukhiqiza kanye nempilo yomsebenzi kuya ngokuya kuba nzima.

1. Ukwandisa Usayizi Wemakethe

Izikhungo zocwaningo lwemakethe zibikezela ukuthi imakethe yomhlaba wonke ye-methyl acetate izokhula ngesilinganiso sokukhula saminyaka yonke esingu-4.3% kusukela ngo-2024 kuya ku-2029, ngenani elikhulu elikhuphukayo. Ukukhula kuqhutshwa yizici ezimbili eziyinhloko:

Isidingo sendabuko esizinzile:Isidingo esiqhubekayo esinamandla se-methyl acetate njengesithako esiyisisekelo kupende, ukumbozwa kanye nokupakishwa.

Izinhlelo zokusebenza ezintsha:Ngaphandle kwendlela entsha ye-MMA, i-methyl acetate isetshenziswa kakhulu njenge-ejenti yokunambitha ekudleni kanye ne-extractant kwezokwelapha.

2. Ukuguquguquka Kwentengo Yemakethe

Muva nje, ukutholakala kwe-methyl acetate kuye kwaba kuncane kakhulu.

Ngokusho kwedatha yesikhulumi sikaFebhuwari 2026:

● Intengo eyinhloko exoxiswane ngayo ye-acetate ye-methyl eluhlaza eMpumalanga yeShayina: 2900–3000 RMB/ton

● Intengo ye-methyl acetate ehlungiwe: cishe i-3450–3500 RMB/ton

Amanani aqinile futhi akhuphuka kancane. Abakhiqizi abakhulu e-Inner Mongolia, eShaanxi nakwezinye izifunda baqhubeka kahle ngezilinganiso ezizinzile.

3. Izinselele Zokuphepha Nezemvelo

Njengoba ukusetshenziswa kwanda, ukuphepha kanye nezingozi zempilo ze-methyl acetate azinakwa.

● Izakhiwo zengozi: Ivutha kakhulu; umhwamuko ungakha ingxube eqhumayo nomoya. Inemiphumela yokubulala izinzwa kanye nokucasula, futhi iguqulwa ibe yi-methanol emzimbeni womuntu, okungalimaza i-optic nerve.

● Ithrendi yokulawula:Kusukela ngo-2024, ama-CDC endawo (isib. i-Fuzhou CDC) aqinise ukuvimbela ubuthi endaweni yokusebenza, okudinga ukusebenza okuvaliwe kanye nokungena komoya endaweni yezindwangu, isikhumba kanye nokunye ukusetshenziswa.

Imithetho eqinile yezemvelo cishe izokhuphula izindleko zokukhiqiza nezokugcina, iqhubekisele phambili imboni ekuthuthukisweni okukhulu nokuqina.

Isiphetho

Kusukela ku-solvent evamile yezimboni kuya kubuchwepheshe obuyisisekelo bokuphula "izinkinga", ukuguqulwa kwe-methyl acetate kubonisa imboni yamakhemikhali yaseShayina eshintsha kusukela ekukhuleni kwesilinganiso kuya ekusungulweni kwezobuchwepheshe.

Emncintiswaneni wemakethe wesikhathi esizayo, amabhizinisi angasebenzisa kangcono izinqubo ezintsha ezisekelwe ku-methyl acetate ngenkathi elawula ngokuqinile ukuphepha kokukhiqiza azohola kuleli gagasi lokuthuthukiswa kwamakhemikhali aluhlaza.