N-I-METHYL PYRROLIDONE (NMP), ifomula yama-molecule :C5H9NO, isiNgisi: 1-Methyl-2-pyrrolidinone, uketshezi olucacile olungenambala kuya kophuzi, iphunga elincane le-ammonia, elixubene namanzi nganoma iyiphi indlela, lincibilikiswe ku-ethyl ether, i-acetone, i-ester, i-halogenated hydrocarbons, ama-aromatic hydrocarbons nezinye izinyibilikisi eziphilayo, Cishe zonke izinyibilikisi ziphelele ingxube ye-Chemicalbook, iphuzu lokubila 204℃, iphuzu le-flash 91℃, i-hygmoscopic, ukuzinza kwamakhemikhali, akukho ukugqwala ensimbini yekhabhoni, i-aluminium, ukugqwala kancane ethusi. Inezinzuzo ze-viscosity ephansi, ukuzinza kwamakhemikhali okuhle nokuzinza kokushisa, i-polarity ephezulu, ukuguquguquka okuphansi, kanye nokungahlangani okungenamkhawulo namanzi kanye nezinyibilikisi eziningi eziphilayo. Lo mkhiqizo umuthi omnene, ukuhlushwa okulinganiselwe okuvunyelwe emoyeni kungu-100PPM.
Izakhiwo kanye nokuzinza:
1. Uketshezi olungenambala, ukunambitheka kwe-ammonia, ubuthi obuphansi balo mkhiqizo. Ungancibilika emanzini, uncibilike ezincibilikisini eziningi zezinto eziphilayo ezifana ne-ether ne-acetone. Ungancibilikisa iningi lamakhemikhali ezinto eziphilayo nezinga-organic, amagesi e-polar, amakhemikhali e-polymer emvelo nawenziwe.
2. Izakhiwo zamakhemikhali: zizinzile kakhulu esixazululweni esingathathi hlangothi. Ngemva kwamahora angu-8 esisombululo se-sodium hydroxide esingu-4%, kwenzeka u-50% ~ 70% we-hydrolysis. I-Hydrolysis yenzeka kuma-concentrate futhi ikhiqiza i-4-meth aminocyl acid. Ngenxa yokusabela kwesisekelo se-cymbal, ingakhiqiza i-ketone noma i-sulfurboline.
3. Uma kukhona ama-catalyst e-alkaline, inomphumela we-olefin, futhi kwenzeka ukusabela kwe-alkylated endaweni yesithathu. I-N-methylporide i-alkaline kancane futhi ingakhiqiza i-hydrochloride kasawoti. Yakha usawoti wensimbi osindayo ohlanganiswe nosawoti osindayo, njengokushisa nge-nickel bromide ku-150℃, okukhiqiza i-NIBR2(C5H9ON)3, kanye nephuzu lokuncibilika elingu-105℃.
Indlela yokukhiqiza:Itholakala ngokusabela okuvela ku-γ-butthochroditettes kanye ne-methylemine. Isinyathelo sokuqala sokusabela ukukhiqiza i-4-hydroxyl-N-methyl-base amine ye-γ-butthlor kanye ne-methylide, bese isinyathelo sesibili sikhishwa amanzi ukuze kukhiqizwe i-N-methylpidohone. Ukusabela kwezinyathelo ezimbili kungenziwa ngokulandelana ku-reactor yeshubhu. I-γ-butthole ingu-1: 1.15, ingcindezi icishe ibe ngu-6MPa, kanti izinga lokushisa lingu-250 ° C. Ngemva kokuthi ukusabela sekuqediwe, umkhiqizo oqediwe utholakala ngokucwiliswa okugxilile kanye nokuncishiswa kokucindezeleka. Izinga lemali engenayo lingu-90%. Uma i-kettle anti-ChemicalBook ikhiqizwa, inani le-methylmine liphindwe izikhathi ezingu-1.5-2.5 kunenani lethiyori, futhi ukulungiswa kwelabhorethri kusetshenziswa njengesibonelo. Phakathi kwamandla e-hydro angu-500ml, i-2mol γ-butterotone kanye ne-4 Moore liquid kuyangezwa ukuze kuvalwe futhi kufudunyezwe ku-280 ° C amahora ama-4. Ngemva kokupholisa, khipha i-methamine eningi, i-distillation, uqoqe amaphuzu okuncibilikisa angu-201-202 ° C, uthole cishe amagremu angu-180 emikhiqizo, futhi imali engenayo izoba cishe ngu-90%. Ukusetshenziswa kwezinto ezingavuthiwe (kg/g) γ-butthoboretin 980 methyline (40%) 860.
Ukusebenza kanye nokugcina:
1. Indlela yokugcina
Gcina ngaphansi kwegesi eyomile engangenisi lutho, gcina isitsha sivaliwe, bese usigcina endaweni epholile neyomile.
2. Izinyathelo zokuphepha zokusebenza
Gwema ukuchayeka: Udinga ukuthola isiqondiso esikhethekile ngaphambi kokusebenzisa. Gwema ukuthinta isikhumba namehlo. Gwema ukuhogela umusi nentuthu. Ungasondeli emthonjeni womlilo. -Akuvunyelwe ukubhema. Thatha izinyathelo zokuvimbela ukunqwabelana okungaguquki.
3. Izinyathelo zokuphepha zokugcina
Kukhona indawo epholile yokugcina. Gcina isitsha sivaliwe bese usigcina endaweni eyomile nengena umoya. Isitsha esivulekile kumele sivalwe ngokucophelela futhi sigcine indawo eqondile ukuvimbela ukuvuza. Ukususwa kokugcinwa okufuthwayo kuyazwela emswakama.
UKUPHAKISHA: 200KG/IDRAM
Isikhathi sokuthunyelwe: Mashi-27-2023