Dimethyl Carbonate Bakeng sa Tšimo ea Liindasteri
Index ea Theknoloji
| Lintho | Yuniti | Standard | Sephetho |
| Ponahalo | - | Seela se se nang mmala le se bonaletsang | |
| Litaba | % | Min99.5 | 99.91 |
| Methanol | % | Max0.1 | 0.006 |
| Mongobo | % | Max0.1 | 0.02 |
| Asiti (CH3COOH) | % | Max0.02 | 0.01 |
| Boima ba @20ºC | g/cm3 | 1.066-1.076 | 1.071 |
| Mmala, Pt-Co | APHA Color | Max10 | 5 |
Tšebeliso
E 'ngoe ea melemo ea mantlha ea DMC ke bokhoni ba eona ba ho nka sebaka sa phosgene joalo ka moemeli oa carbonylating, ho fana ka mokhoa o sireletsehileng le o seng kotsi ho feta oa tikoloho.Phosgene e beha kotsi e kholo maphelong a batho le tikolohong ka lebaka la chefo ea eona.Ka ho sebelisa DMC ho e-na le phosgene, bahlahisi ba ke ke ba ntlafatsa litekanyetso tsa tšireletso feela, empa hape ba kenya letsoho ho hlahisa mokhoa o motala, o hloekileng.
Ho feta moo, DMC e ka sebetsa e le sebaka se setle sa methylating agent dimethyl sulfate.Dimethyl sulfate ke motsoako o chefo haholo o bakang kotsi e kholo ho basebetsi le tikolohong.Ho sebelisa DMC joalo ka moemeli oa methylating ho felisa likotsi tsena ha ho ntse ho fana ka liphetho tse tšoanang.Sena se etsa hore DMC e be e loketseng liindasteri tse hlahisang meriana, lik'hemik'hale tsa temo le lik'hemik'hale tse ling tsa methyl-critical.
Ntle le melemo e boletsoeng ka holimo, DMC e boetse e ipabola e le solvent e tlase ea chefo, e etsang hore e be khetho e khahlehang bakeng sa lits'ebetso tse fapaneng.Chefo ea eona e tlase e tiisa tikoloho e sireletsehileng ea mosebetsi, e fokotsang kotsi ea ho pepeseha ha basebetsi le bareki linthong tse kotsi.Ho feta moo, ho qhibiliha ho hoholo ha DMC le ho lumellana ho pharaletseng le lisebelisoa tse fapaneng ho e etsa motsoako oa bohlokoa tlhahisong ea tlatsetso ea peterole.Ho sebelisa DMC joalo ka solvent bakeng sa li-additives tsa mafura ho ntlafatsa ts'ebetso e akaretsang ea ho tuka ha peterole, e fokotsang mesi le ho ntlafatsa ts'ebetso ea enjine.
Qetellong, dimethyl carbonate (DMC) ke mokhoa o fapaneng le o tsitsitseng oa metsoako ea setso.Tšireletseho, boiketlo ba eona, chefo e tlaase le ho lumellana ho etsa hore DMC e be e loketseng bakeng sa mefuta e mengata ea likopo.Ka ho nkela phosgene le dimethyl sulfate sebaka, DMC e fana ka khetho e sireletsehileng, e tala ntle le ho senya ts'ebetso.Ebang e sebelisoa e le moemeli oa carbonylating, methylating agent, kapa low-toxicity solvent, DMC ke tharollo e tšepahalang bakeng sa liindasteri tse batlang ho ntlafatsa lihlahisoa le mekhoa ha li ntse li fokotsa tšusumetso ea tikoloho.
