Price N-Vinyl Pyrrolidone (NVP) CAS 88-12-0

NVP est maxime ad producendum polyvinylpyrrolidone, quae late in agros medicina, cotidie eget et cibum industria.

I. late in stibio, detergents, medicina, photosensitive materiae et aliis agris

II. Nam capillos tibialia, pharmacy disinfectants, etc.

Et parasceve processus of n-ethylene pheasone, comprehendo sequenti gradibus: I. Dehydrated catalysts parasceve dehydrated catalyst continent argenteas sulfate, sodium aluminium silicate, albo carbonibus nigrum, Amproof et multi-cadmiae. Proportionalis est: 0,5: V: III, V: X; Inter eos, multi, multi -Oxides sunt quinque mixturis quinque oxidatio duo - 钒 et cadmiae, stannum cadmiae sexus cadmiae et manganese dioxide; Est mixturam quinque oxidatio dioxide et cadmiae, quinque oxidatio duo - 钒 et stannum cadmiae quinque oxidatio duo - 钒 et manganese cadmiae et manganese dioxide. The mixture of the seventh oxidation dioxide is 0.2: 1: 2: 1. The production steps of dehydrated catalysts are: mix silver sulfate, amproof, and multi -oxides in proportion, then add 1 times the volume of distilled water, adjust the pH Valorem de sulphuric acidum et ammoniaci aqua ad 6.5 ad VII et adde sodium silicinum et sodium siliconate et proportionalis proportionalium. Alba carbonibus nigrum calefacto et excitavit ad uniformis solution; Excita in aquam balneum et condense solutionem siccis, sicco at 100-120 ° C ad VI ad 8h, et tune coxit ad III ad 5h ad CD CDL ° C. II. Praeparatio N-Hydroxyethylpyline (NHP) I) Misce γ-butanol, unus ethanol et ammoniaci ad rationem 1.2: I: 0,2 et reags ad 0.5MPA et XL ° C. II) addere ad M. cribrum 0.1wt% et 0,1wt% de DHALL Ather ad augendam temperatus ad CLXXX ° C ad eam dehydrated per 12h in retinuit statu; Quid est descriptus; Quid dicitur? Molecular cribrum est 10xchemicalbookbook Molecular cribrum aut 13x mulget. Modus electus ut 10x mysterium sievis; III) Decompression Distillation, in vacuo 0,095MPA et colligit Distillation de ferventis Point CCX ad CCXVI ° C. Pyrodorrone; III. Et siccitatibus reactionem de n-hydroxyetylpinol ad distillationis score adeptus in praeparatione n-hydroxyethylpinols in vapor, mixta cum alkaline Gas, acetylene mixtisque et NITROGENIUM obtinere gaseous rudis materia mixtisque. I est mixta Ratio: 0,5: 0.1: 0.1: Et gaseous rudis materia mixtisque sub conditione de fixum lectum reactor de haeret, dehydrated catalyst ad temperatus de CCCL ° C, in pressura 0.01MPA et Gas celeritas 50-300h-I et siccitatibus siccitatibus siccitatibus in fixa Lectum reactor in catalyst est calefacta ad CCCXC ° C. post dehydration reactionem ad statera, in N-ethylene cephalopicone (NVP) Product est ex fixo lectum reactor. Et alkaline vapores sunt quidem unus de ammonia, methylmine, Dihamine, trothalminmine et Ethimine. Adopt gas chromatography analysis method, based on γ-butthite as the internal standard, ethanol as the solvents, analyzed the N-ethylene cheedone product prepared by this method, calculated the NHP conversion rate, NVP selectivity, NVP revenue, of which gas phase phase Phase Phase, de quibus tempus Gas tempus tempus tempus tempus, de quo Gas tempus tempus erat chromatographic test conditionibus: TCD detector, immaculatam ferro columnae, Poly acetic Halcol Tannite Dilat solution, NITROGENIUM onustus, Silicenerization CII ° C, TCD, columnas CXC; Calculus initus per analysis de Gas chromatography: NHP conversionem rate of 92.8%, NVP selectivity 91.5% et NVP vectigal de 85.6%.