Iyo inozivikanwawo se dimethyl tiphenylamine, isina ruvara kuenda kuchiedza yero ine mafuta emvura, ine hwema hunonhuhwirira, nyore kuisa oxidize mumhepo kana pasi pezuva uye kushandisa ze yakasvibiswa.Relative density (20℃/ 4℃) 0.9555, nzvimbo yechando 2.0℃, poindi inopisa 193℃, flash point (kuvhura) 77℃, flash point 317℃, viscosity (25℃) 1.528mpa-s, refractive index (n20D) 1.5584.Soluble mu ethanol, ether, chloroform, benzene uye zvimwe organic solvents.Soluble mumhando dzakasiyana-siyana dzeorganic compounds.Zvishoma soluble mumvura.Zviri combuyakasimba uye ichapisa kana moto wakazaruka.Iyo mhute nemhepo zvinogadzira musanganiswa unoputika une muganho unoputika we1.2% ~ 7.0% (vol).Iyo ine muchetura zvakanyanya, uye ine muchetura aniline gasi inoburitswa nekupisa kukuru kwesimba rekuora.Inogona kubatwa kuburikidza neganda uye inokonzera chepfu, LD501410mg/kg, iyo yakanyanya kubvumidzwa yekuisa mumhepo ndeye 5mg/m3.

Kuchengeta nzira

1.Kuchengetedza Kuchengetedza[25] Chengeta muimba yekuchengetera inotonhorera, ine mhepo yakanaka.Ramba kure nemoto nekupisa.Chengetedza mudziyo wakavharwa.Inofanira kuchengetwa zvakasiyana kubva kune acids, halogens, uye makemikari anodyiwa, uye haana kumbosanganiswa.Yakashongedzerwa nemhando dzinoenderana uye huwandu hwemidziyo yekudzimisa moto.Nzvimbo yekuchengetera inofanirwa kunge yakashongedzerwa nemichina yekukurumidzira yekurapa inodonha uye yakakodzera pekugara.

2. Gamuchira dhiramu resimbi rakavharwa kurongedza, 180kg padhiramu, uye chengeta munzvimbo inotonhorera uye ine mhepo.Chengetedza uye kutakura maererano nemirairo yezvinhu zvinopisa uye zvine chepfu.

synthesis nzira

1. Inowanikwa nekuita pakati peaniline uye methanol muhupo hwe sulfuric acid pakupisa kwepamusoro uye kudzvinyirira kukuru.Maitiro ekuyerera:1.790kg ye aniline, 625kg ye methanol, 85kg ye sulfuric acid (ammonium 100%) inowedzerwa mu kettle yekuita, kutonga tembiricha 210-215.℃, dzvinyiriro 3.1MPa, inogadzirisa 4h, wozosunungura kudzvinyirira, zvinhu zvinobudiswa kune separator, zvisingasviki ne 30% sodium hydroxide, static, uye yakaderera quaternary ammonium munyu inoparadzaniswa.Ipapo pa160℃, 0.7-0.9MPa hydrolysis reaction ye3h, iyo hydrolysis zvigadzirwa uye yekumusoro layer yemafuta zvinhu zvakasanganiswa nekugezwa mushure mekutsvaira distillation yechigadzirwa chakapedzwa.

2. Kushandisa methanol uye aniline semidziyo, inogadzirwa nealumina catalyst pasi pemamiriro e200-250.℃ine methanol yakawandisa uye kumanikidzwa kwemhepo.Iyo mbishi yekushandisa quota: aniline 790kg/t, methanol 625kg/t, sulfuric acid 85kg/t.Kugadzirira murabhoritari kunogona kuita aniline ine trimethyl phosphate.

3. aniline uye methanol yakasanganiswa (n aniline: n methanol≈1:3), uye kuburikidza nepombi inodzokororwa isiri-pulse metering pombi inobaiwa pa 0.5h-1 mhepo yekumhanya ichipinda mureactor ine catalyst, iyo reaction inobuda kutanga mugirazi gasi-mvura yekuparadzanisa, s.eparator pasi pemvura inounganidzwa nguva nenguva inobviswa kuti iongororwe chromatographic.

Muna 2001, Nankai University neTianjin Ruikai Technology Development Co., Ltd. vakabatana vakagadzira aniline methylation catalyst inoshanda zvakanyanya, uye vakaziva kuumbwa kwegasi-chikamu cheN, N-dimethyl aniline.Maitiro acho ndeaya anotevera: Liquid aniline inosanganiswa ne methanol, yakanyungudutswa mu vaporization tower, yobva yapinda mune tubular reactor ine air velocity ye 0.5-1.0h-1 (mubhedha wakagadziriswa we tubular reactor wakashongedzerwa nano yakatakura. -solid catalyst), uye inoramba ichigadzirwa pa250-300℃under atmospheric pressure, ine goho reDMA rinopfuura 96%.

Nzira yekunatsa: Inowanzo ine tsvina yakadai seaniline uye N-methyl aniline.N,N-dimethylaniline inonyungudutswa mu40% sulfuric acid uye yakanyungudutswa nemhute yemvura.Sodium hydroxide inowedzerwa kuti iite alkaline.Iyo distillation inoenderera mberi nemhute yemvura.Iyo distillate inoparadzaniswa kuita aqueous layers uye yakaomeswa ne potassium hydroxide.Normal pressure distillation inoitwa pamberi peacetic anhydride.Iyo distillate inoshambidzwa nemvura kuti ibvise acetic anhydride, yakaomeswa ne potassium hydroxide, inoteverwa nebarium oxide, uye inonyungudutswa pasi pekumanikidzwa kwakaderedzwa pamberi perukova rwenitrogen.Dzimwe nzira dzekuchenesa distillate dzinosanganisira kuwedzera 10% acetic anhydride uye refluxing kwemaawa mashomanana kubvisa maamine ekutanga uye echipiri.Mushure mekutonhora, yakawandisa ye20% hydrochloric acid inowedzerwa uye inotorwa ne ether.Iyo hydrochloric acid layer ine alkaline ine alkali uye yobva yatorwa ne ether, uye iyo ether layer inoomeswa ne potassium hydroxide uye inonyungudutswa pasi pekumanikidzwa kwakaderedzwa pasi perukova rwenitrogen.N,N-dimethylaniline inogonawo kushandurwa kuita picric acid munyu, yakadzokororwa kusvika painonyungudika inogara ichinyunguduka yobva yaora nekudziya kwe10% aqueous solution ye sodium hydroxide.Inobva yabviswa ne ether, yosukwa uye yoomeswa, uye inonyungudutswa pasi pekumanikidzwa kwakaderedzwa.

5. Aniline, methanol uye sulfuric acid yakavhenganiswa muchikamu, condensation reaction mu autoclave, maitiro ekugadzirisa nekudzvinyirira kudzorerwa kwemethanol, kuwedzera alkali neutralization, kuparadzanisa uye ipapo distillation nekuderedza kudzvinyirira kuwana chigadzirwa.

6. N, N-dimethylaniline inogona kugadzirwa nemethylation reaction yeaniline uye trimethyl phosphate, uye inobva yabudiswa ne ether, yakaomeswa uye yakasvibiswa.

7. N,N-dimethylaniline inogona kugadzirwa pamubhedha unobatsira weZiegler catalyst mumhangura-manganese system kana mhangura-zinc-chromium system pa280.℃nemusanganiswa weaniline uye methanol pachiyero che1: 3.5.Iyo yakawanikwa N, N-dimethylaniline yakaunganidzwa pa193-195℃pane 54-tab column distillation mudziyo uye yakarongedzwa mumabhodhoro egirazi rebrown.Kugadzira yakachena N,N-dimethylaniline, iyo N,N-dimethylaniline inogona kubaiwa nenitrogen gasi semutakuri gasi mukugadzirira gasi chromatograph which ine simbi phosphate column.

Chikumbiro chikuru

1. Icho chimwe chezvinhu zvakakosha zvekugadzirwa kwemunyu-based dyestuff (triphenylmethane dyestuff, nezvimwewo) uye alkali dyestuff.2. Inoshandiswa se solvent, metal preservative, kuporesa agent ye epoxy resin, kuporesa accelerant ye polyester resin, co-catalyst ye polymerization ye ethylene compounds, etc. Inoshandiswawo kugadzirira alkaline triphenylmethane dyes, azo dyes uye vanillin, nezvimwewo. 3. Inoshandiswawo mukugadzirisa alkaline triphenylmethane dyes, azo dyes uye vanillin, nezvimwewo 3. Inoshandiswa sechinhu chinokonzera mukugadzirwa kwepolyurethane foam mukubatana ne organotin compounds.Inoshandiswawo sechinhu chinokonzeresa mukugadzirwa kwe polyurethane furo uye seyakabikwa yerabha vulcanization inosimudzira, zvinoputika uye mushonga.N,N-Dimethylaniline inoshandiswa muindasitiri yemishonga kugadzira cephalosporin V, sulfamethoxine N-methoxypyrimidine, sulfamethoxine o-dimethoxypyrimidine, fluorosporine, nezvimwewo. Inoshandiswawo muindasitiri yezvinonhuwira kugadzira vanillin.4. Inoshandiswa seanorapa accelerator ye epoxy resin, polyester resin uye anaerobic glue, kuitira kuti anaerobic glue isimba nokukurumidza.Inogonawo kushandiswa sechinhu chinonyungudutsa, co-catalyst ye polymerization ye ethylene compounds, metal preservative, an ultraviolet absorber for cosmetics, photosensitizer, etc. Inogonawo kushandiswa sechinhu chinokonzera kugadzirwa kwedhayi ane alkaline. kuparadzira madhayi, madhayi ane acid, madhayi anonyungudika nemafuta uye zvinonhuhwirira (vanillin), etc. Inoshandiswawo seyakagadzirwa kugadzira alkaline dhayi, kuparadzira dhayi, asidhi dhayi, mafuta-soluble dhayi uye zvinonhuwira (vanillin), nezvimwe. rinoshandiswa se reagent ye photometric kutsunga ye nitrite.Inoshandiswawo sechinhu chinonyungudutsa, uye inoshandiswa muorganic synthesis.6.Inoshandiswa senge dhayi yepakati, solvents, stabilizers, analytical reagents.[26]