N-METHYL PYRROLIDONE (NMP), cov mis molecular: C5H9NO, Lus Askiv: 1-Methyl-2-pyrrolidinone, tsis muaj xim rau cov kua daj, me ntsis ammonia tsw, sib xyaw nrog dej hauv txhua qhov sib piv, yaj hauv ethyl ether, acetone, ester, halogenated hydrocarbon, aromatic hydrocarbons thiab lwm yam organic solvents, Yuav luag txhua cov kuab tshuaj ua tiav Chemicalbook sib xyaw, boiling point 204 ℃, flash point 91 ℃, hygmoscopic, tshuaj stability, tsis muaj corrosion rau carbon hlau, txhuas, me ntsis corrosive rau tooj liab. Nws muaj qhov zoo ntawm viscosity qis, tshuaj stability zoo thiab thermal stability, polarity siab, tsawg volatility, thiab infinite miscibility nrog dej thiab ntau yam organic solvents. Cov khoom no yog ib qho tshuaj me me, qhov kev txwv tsis pub tshaj plaws hauv huab cua yog 100PPM.
Cov Khoom thiab kev ruaj khov:
1. Cov kua no tsis muaj xim, tsw qab ammonia, tsis muaj tshuaj lom. Nws yaj tau nrog dej, yaj tau hauv feem ntau cov kuab tshuaj organic xws li ether thiab acetone. Nws yaj tau feem ntau cov organic thiab inorganic compounds, polar gases, natural thiab synthetic polymer compounds.
2. Cov khoom siv tshuaj lom neeg: ruaj khov nyob rau hauv cov kua nruab nrab. Tom qab 8 teev ntawm 4% ntawm sodium hydroxide kua, 50% ~ 70% ntawm hydrolysis tshwm sim. Hydrolysis tshwm sim nyob rau hauv concentrates thiab tsim 4-meth aminocyl acid. Vim yog qhov tshuaj tiv thaiv ntawm lub hauv paus cymbal, nws tuaj yeem tsim ketone lossis sulfurboline.
3. Thaum muaj cov tshuaj alkaline catalysts, nws muaj cov nyhuv ntawm olefin, thiab qhov kev cuam tshuam alkylated tshwm sim hauv qhov chaw thib peb. N-methylporide yog alkaline tsis muaj zog thiab tuaj yeem tsim cov ntsev hydrochloride. Tsim ib qho kev sib xyaw nrog cov ntsev hlau hnyav, xws li cua sov nrog nickel bromide txog 150 ℃, tsim NIBR2 (C5H9ON) 3, thiab lub ntsiab lus yaj ntawm 105 ℃.
Txoj kev tsim khoom:Nws tau txais los ntawm kev tshuaj tiv thaiv los ntawm γ-butthochroditettes thiab methylemine. Kauj ruam thawj zaug ntawm kev tshuaj tiv thaiv yog los tsim 4-hydroxyl-N-methyl-base amine rau γ-butthlor thiab methylide, thiab kauj ruam thib ob ces dehydrated los tsim N-methylpidohone. Ob kauj ruam tshuaj tiv thaiv tuaj yeem ua tiav ua ke hauv lub raj reactor. Lub γ-butthole yog 1: 1.15, qhov siab yog li 6MPa, thiab qhov kub yog 250 ° C. Tom qab kev tshuaj tiv thaiv tiav lawm, cov khoom tiav lawm tau txais los ntawm kev sib xyaw thiab decompression distillation. Tus nqi nyiaj tau los yog 90%. Yog tias lub kettle anti-ChemicalBook tsim tawm, qhov ntau ntawm methylmine yog 1.5-2.5 npaug ntawm qhov theoretical ntau, thiab kev npaj kuaj mob yog siv ua piv txwv. Ntawm 500ml hydropower, 2mol γ-butterotone thiab 4 Moore kua raug ntxiv rau kom kaw thiab cua sov kaw ntawm 280 ° C rau 4h. Tom qab txias, tso cov methamine ntau dhau, distillation, sau 201-202 ° C distillation points, tau txog 180g ntawm cov khoom, thiab cov nyiaj tau los yuav tsum yog li 90%. Cov khoom siv raw siv (kg / g) γ-butthoboretin 980 methyline (40%) 860.
Kev Ua Haujlwm thiab Kev Cia Khoom:
1. Txoj kev khaws cia
Khaws cia rau hauv qab cov roj inert qhuav, khaws lub thawv kom kaw, thiab khaws cia rau qhov chaw txias thiab qhuav.
2. Kev ceev faj ua haujlwm
Tsis txhob raug hluav taws: Koj yuav tsum tau txais kev qhia tshwj xeeb ua ntej siv. Tsis txhob kov daim tawv nqaij thiab qhov muag. Tsis txhob nqus pa thiab pa luam yeeb. Tsis txhob mus ze qhov chaw uas muaj hluav taws. -Tsis txhob haus luam yeeb. Ua raws li cov lus qhia kom tiv thaiv kev sib sau ua ke ntawm cov khoom siv hluav taws xob.
3. Kev ceev faj txog kev khaws cia
Muaj qhov chaw txias hauv qhov chaw khaws cia. Khaws lub thawv kom kaw thiab khaws cia rau qhov chaw qhuav thiab muaj cua nkag. Lub thawv qhib yuav tsum tau kaw kom zoo thiab khaws cia rau qhov chaw ntsug kom tiv thaiv kev xau. Kev tshem tawm cov khoom siv inflatable yog rhiab rau cov av noo.
NTIM: 200KG / NRUAB
Lub sijhawm tshaj tawm: Lub Peb Hlis-27-2023