Umenzi Ixabiso Elihle N-VINYL PYRROLIDONE (NVP) CAS 88-12-0

I-NVP isetyenziswa kakhulu ukuvelisa i-polyvinylpyrrolidone, esetyenziswa kakhulu kwicandelo lezonyango, iikhemikhali zemihla ngemihla kunye neshishini lokutya.

1. Isetyenziswa kakhulu kwizinto zokuthambisa, izinto zokucoca, amayeza, izinto ezibonisa ukukhanya kunye nezinye iinkalo

2. Kwiijeli zokuhombisa iinwele, izibulali-ntsholongwane zekhemesti, njl.

Inkqubo yokulungiselela i-N-ethylene pheasone, kuquka la manyathelo alandelayo: 1. Ii-catalysts eziphelelwe ngamanzi emzimbeni zokulungiselela i-catalyst ephelelwe ngamanzi emzimbeni ziqulethe i-silver sulfate, i-sodium aluminium silicate, i-white charcoal black, i-amproof, kunye ne-multi-oxide. Umlinganiselo ngu: 0.5 : 5: 3: 5: 10; Phakathi kwazo, ii-multi-oxides ziimixube emihlanu ye-oxidation two -钒 kunye ne-oxide, i-tin oxide, i-sex oxide, kunye ne-manganese dioxide; Ngumxube we-oxidation dioxide ezintlanu kunye ne-oxide, i-oxidation two -钒 kunye ne-tin oxide, i-oxidation two -钒 kunye ne-manganese oxide kunye ne-manganese dioxide. Umxube we-oxidation dioxide yesixhenxe ngu-0.2: 1: 2: 1. Amanyathelo okuvelisa ii-catalysts eziphelelwe ngamanzi emzimbeni zezi: xuba i-silver sulfate, i-amproof, kunye ne-multi-oxides ngokulinganisela, uze wongeze umthamo wamanzi acocekileyo ngokuphindwe ka-1, lungisa ixabiso le-pH ye-sulfuric acid kunye namanzi e-ammonia ukuya kwi-6.5 ukuya kwi-7, uze wongeze i-sodium silicine kunye ne-sodium siliconate kwaye ngokulinganisela ukulinganisela. Amalahle amhlophe amnyama, ashushu aze axutywe ukuze kwenziwe isisombululo esifanayo; xuba emanzini uze udibanise isisombululo ukuze some, some kwi-100-120 ° C iiyure ezi-6 ukuya kwezi-8, uze ubhake iiyure ezi-3 ukuya kwezi-5 kwi-400 ~ 450 ° C. 2. Ukulungiswa kwe-N-hydroxyethylpyline (NHP) 1) Xuba i-γ-butanol, i-ethanol enye, kunye ne-ammonia kumlinganiselo we-1.2: 1: 0.2, kwaye isabela kwi-0.5MPa kunye ne-40 ° C. , Yenza i-intermediate; 2) Yongeza i-molecular seeve ye-0.1WT % kunye ne-0.1WT % ye-dilateyl dihal ether ukuze wonyuse ubushushu ukuya kwi-180 ° C ukuze ingabi namanzi ngeeyure ezili-12 kwimeko yokugcina; yintoni echazwa njengechazwe; yintoni ekhankanyiweyo? I-molecular seeve yi-10xchemicalbook molecular seeve okanye i-13X molecular seeve. Le ndlela ikhethwa njenge-10x molecular seeves; 3) i-decompression distillation, i-vacuum yi-0.095MPa, kwaye iqokelela i-distillation yeqondo lokubila le-210 ukuya kwi-216 ° C. I-Pyrodorrone; 3. I-reaction ye-N-hydroxyetylpinol yokuphelelwa ngamanzi emzimbeni ukwenza amanqaku e-distillation afunyenwe ekulungiseleleni i-N-hydroxyethylpinols ibe ngumphunga, ixutywe ne-alkaline gas, i-acetylene gases, kunye ne-nitrogen ukuze kufunyanwe umxube we-gaseous raw material. Umlinganiselo oxutyiweyo yi-1: 0.5: 0.1: 0.1; Yenza umxube we-gaseous raw material phantsi kwemeko ye-fixed bed reactor ye-dehydrated catalyst kubushushu be-350 ° C, uxinzelelo lwe-0.01MPa kunye nesantya segesi se-50-300H-1, kunye ne-dehydration ye-dehydration kwi-fixed bed reactor. I-catalyst ishushu ukuya kwi-390 ° C. Emva kokuba i-dehydration reaction ifikelele kwi-balance, imveliso ye-N-ethylene cephalopicone (NVP) ikhutshwa kwi-fixed bed reactor. Iigesi ze-alkaline ubuncinane zezinye ze-ammonia, i-methylemine, i-dihamine, i-trothalmine, kunye ne-ethimine. Sebenzisa indlela yohlalutyo lwe-gas chromatography, esekelwe kwi-γ-butthite njengomgangatho wangaphakathi, i-ethanol njenge-solvents, uhlalutye imveliso ye-N-ethylene cheedone elungiselelwe yile ndlela, ubale izinga lokuguqulwa kwe-NHP, ukukhetha kwe-NVP, ingeniso ye-NVP, apho isigaba sesigaba segesi, apho isigaba sesigaba segesi, apho isigaba sesigaba segesi sasiyimeko yovavanyo lweChromatographic: I-TCD detector, ikholamu yentsimbi engatyiwayo, isisombululo sokulungisa i-poly acetic glycol tannite dilate, i-nitrogen ilayishiwe, i-silicanerization 102 ukungafani okumhlophe, ubushushu begumbi le-gasification 280 ° C, ubushushu be-TCD detector 165 ° C, iikholamu, iikholamu, iikholamu Ubushushu be-190 ° C; bubalwa ngohlalutyo lwe-gas chromatography: Izinga lokuguqulwa kwe-NHP le-92.8%, ukukhetha kwe-NVP 91.5%, kunye nengeniso ye-NVP ye-85.6%.