Chaw Tsim Khoom Zoo Nqe N-VINYL PYRROLIDONE (NVP) CAS 88-12-0

NVP feem ntau yog siv los tsim cov polyvinylpyrrolidone, uas yog siv dav hauv cov teb ntawm kev kho mob, tshuaj lom neeg txhua hnub thiab kev lag luam zaub mov.

1. Siv dav hauv cov tshuaj pleev ib ce, tshuaj ntxuav, tshuaj, cov ntaub ntawv photosensitive thiab lwm yam teb

2. Siv rau cov tshuaj pleev plaub hau, cov tshuaj tua kab mob hauv tsev muag tshuaj, thiab lwm yam.

Cov txheej txheem npaj ntawm N-ethylene pheasone, suav nrog cov kauj ruam hauv qab no: 1. Cov catalysts dehydrated ntawm kev npaj cov catalyst dehydrated muaj cov nyiaj sulfate, sodium txhuas silicate, dawb charcoal dub, amproof, thiab multi-oxide. Qhov sib piv yog: 0.5: 5: 3: 5: 10; Ntawm lawv, cov multi-oxides yog tsib qhov sib xyaw ntawm tsib oxidation ob -钒 thiab oxide, tin oxide, poj niam txiv neej oxide, thiab manganese dioxide; Nws yog qhov sib xyaw ntawm tsib oxidation dioxide thiab oxide, tsib oxidation ob -钒 thiab tin oxide, tsib oxidation ob -钒 thiab manganese oxide thiab manganese dioxide. Qhov sib xyaw ntawm xya oxidation dioxide yog 0.2: 1: 2: 1. Cov kauj ruam tsim khoom ntawm cov catalysts dehydrated yog: sib tov nyiaj sulfate, amproof, thiab multi-oxides hauv qhov sib piv, tom qab ntawd ntxiv 1 zaug ntawm cov dej distilled, kho tus nqi pH ntawm sulfuric acid thiab ammonia dej rau 6.5 txog 7, thiab tom qab ntawd ntxiv sodium silicine thiab sodium siliconate thiab hauv qhov sib piv rau qhov sib piv. Cov thee dawb yog dub, cua sov thiab do kom ua cov tshuaj sib xws; do hauv dej da dej thiab condense cov tshuaj kom qhuav, qhuav ntawm 100-120 ° C rau 6 txog 8h, thiab tom qab ntawd ci rau 3 txog 5h ntawm 400 ~ 450 ° C. 2. Kev npaj ntawm N-hydroxyethylpylpyline (NHP) 1) Sib tov γ-butanol, ib qho ethanol, thiab ammonia ntawm qhov sib piv ntawm 1.2: 1: 0.2, thiab reacts ntawm 0.5MPa thiab 40 ° C., Ua ib qho nruab nrab; 2) Ntxiv cov molecular sieve ntawm 0.1WT% thiab 0.1WT% ntawm dilateyl dihal ether kom nce qhov kub mus rau 180 ° C kom ua rau nws qhuav los ntawm 12h hauv lub xeev khaws cia; dab tsi yog piav qhia raws li tau piav qhia; dab tsi yog hais txog? Lub molecular sieve yog 10xchemicalbook molecular sieve lossis 13X molecular sieve. Txoj kev no yog xaiv ua 10x molecular sieves; 3) decompression distillation, lub tshuab nqus tsev yog 0.095MPa, thiab sau cov distillation ntawm lub boiling point ntawm 210 txog 216 ° C. Pyrodorrone; 3. Qhov dehydration reaction ntawm N-hydroxyetylpinol los ua kom cov qhab nia distillation tau txais hauv kev npaj ntawm N-hydroxyethylpinols rau hauv chav, sib xyaw nrog alkaline roj, acetylene roj, thiab nitrogen kom tau txais cov khoom siv roj sib xyaw. Qhov sib xyaw sib xyaw yog 1: 0.5: 0.1: 0.1; Ua cov khoom siv roj sib xyaw nyob rau hauv qhov xwm txheej ntawm lub txaj reactor ruaj khov ntawm lub dehydrated catalyst ntawm qhov kub ntawm 350 ° C, qhov siab ntawm 0.01MPa thiab qhov ceev roj ntawm 50-300H-1, thiab dehydration ntawm dehydration hauv lub txaj reactor ruaj khov Lub catalyst yog cua sov rau 390 ° C. Tom qab qhov dehydration reaction mus txog qhov sib npaug, N-ethylene cephalopicone (NVP) khoom raug tso tawm ntawm lub txaj reactor ruaj khov. Cov pa roj alkaline yog tsawg kawg yog ib qho ntawm ammonia, methylemine, dihamine, trothalmine, thiab ethimine. Siv txoj kev tshuaj xyuas roj chromatography, raws li γ-butthite ua tus qauv sab hauv, ethanol ua cov kuab tshuaj, tshuaj xyuas cov khoom N-ethylene cheedone uas npaj los ntawm txoj kev no, xam tus nqi hloov pauv NHP, NVP xaiv, NVP cov nyiaj tau los, ntawm cov roj theem theem theem, ntawm cov roj theem theem theem theem, ntawm cov roj theem theem theem yog Chromatographic xeem mob: TCD ntes, stainless hlau kem, poly acetic glycol tannite dilate kho cov tshuaj, nitrogen yog loaded, silicanaerization 102 dawb sib piv, gasification chav tsev kub 280 ° C, TCD ntes kub 165 ° C, kem, kem, kem Qhov kub ntawm 190 ° C; xam los ntawm kev tshuaj xyuas ntawm cov roj chromatography: NHP hloov pauv tus nqi ntawm 92.8%, NVP xaiv 91.5%, thiab NVP cov nyiaj tau los ntawm 85.6%.