IDimethyl carbonate yeNdawo yoShishino
Isalathiso soBugcisa
Izinto | Iyunithi | Umgangatho | Isiphumo |
Imbonakalo | - | Ulwelo olungenambala & elubala | |
Umxholo | % | Min99.5 | 99.91 |
IMethanol | % | Ubukhulu be-0.1 | 0.006 |
Ukufuma | % | Ubukhulu be-0.1 | 0.02 |
Ubumuncu (CH3COOH) | % | Ubukhulu 0.02 | 0.01 |
Ukuxinana @20ºC | g/cm3 | 1.066-1.076 | 1.071 |
Umbala, Pt-Co | APHA Umbala | Ubukhulu be-10 | 5 |
Ukusetyenziswa
Enye yeenzuzo eziphambili ze-DMC kukukwazi ukubuyisela i-phosgene njenge-agent ye-carbonylating, inikezela ngenye indlela ekhuselekileyo kunye neyokusingqongileyo.I-Phosgene ibeka umngcipheko omkhulu kwimpilo yabantu nakwi-ecosystem ngenxa yobutyhefu bayo.Ngokusebenzisa i-DMC endaweni ye-phosgene, abavelisi abanako nje ukuphucula imigangatho yokhuseleko, kodwa baphinde bafake isandla kwinkqubo yokuvelisa eluhlaza, ecocekileyo.
Ukongeza, i-DMC inokusebenza njengendawo ebalaseleyo ye-methylating agent dimethyl sulfate.I-Dimethyl sulfate yi-compound enetyhefu kakhulu eyenza ingozi enkulu kubasebenzi kunye nokusingqongileyo.Ukusebenzisa i-DMC njenge-agent ye-methylating kuphelisa le mingcipheko ngelixa ibonelela ngeziphumo ezifanayo.Oku kwenza ukuba i-DMC ilunge kumashishini avelisa amayeza, iikhemikhali ze-agrochemicals, kunye nezinye iikhemikhali ezibaluleke kakhulu kwi-methyl.
Ukongeza kwiinzuzo ezikhankanywe ngasentla, i-DMC iphinda iphumelele njenge-solvent ye-toxicity ephantsi, iyenze ibe yinto ekhangayo kwizicelo ezahlukeneyo.Ubuthi bayo obuphantsi buqinisekisa indawo yokusebenza ekhuselekileyo, ukunciphisa umngcipheko wokuvezwa kwabasebenzi kunye nabathengi kwizinto ezinobungozi.Ngaphaya koko, ukunyibilika okugqwesileyo kwe-DMC kunye nokuhambelana okubanzi kunye nezixhobo ezahlukeneyo kuyenza ibe sisithako esibalulekileyo kwimveliso eyongeziweyo yepetroli.Ukusebenzisa i-DMC njengesinyibilikisi sezongezo zepetroli kuphucula ukusebenza kakuhle kokutsha kwepetroli, okunciphisa ukukhutshwa kunye nokuphucula ukusebenza kwe-injini.
Ukuqukumbela, i-dimethyl carbonate (i-DMC) yindlela eguquguqukayo kunye nezinzileyo kwiikhompawundi zemveli.Ukhuseleko lwayo, ukukhululeka, ubuthi obuphantsi kunye nokuhambelana kwenza i-DMC ilungele uluhlu olubanzi lwezicelo.Ngokutshintsha i-phosgene kunye ne-dimethyl sulfate, i-DMC inikezela ngokukhuselekileyo, ukhetho oluluhlaza ngaphandle kokunciphisa ukusebenza.Ingaba isetyenziswe njenge-carbonylating agent, i-methylating agent, okanye i-solvent-toxicity ephantsi, i-DMC iyisisombululo esithembekileyo kumashishini ajonge ukunyusa iimveliso kunye neenkqubo ngelixa unciphisa impembelelo yokusingqongileyo.