E boetse e tsejoa e le dimethyl tiphenylamine, e se nang 'mala ho isa mokelikeli o mosehla o nang le oli e khanyang, o monko o hlabang, o bonolo ho oxidize moeeng kapa tlas'a letsatsi le ho sebelisa ze darkened.Boima ba palo (20℃/ 4℃) 0.9555, ntlha ea leqhoa 2.0℃, ntlha e belang 193℃, ntlha ea flash (ho buloa) 77℃, ntlha ea flash 317℃, viscosity (25℃) 1.528mpa-s, index ea refractive (n20D) 1.5584.E qhibiliha ka har'a ethanol, ether, chloroform, benzene le metsoako e meng ea tlhaho.E qhibiliha ka mefuta e fapaneng ea metsoako ea tlhaho.E qhibiliha hanyane ka metsing.Ke combue tsitsitseng mme e tla tuka haeba ho ka hlaha lelakabe le bulehileng.Mouoane le moea li tla etsa motsoako o phatlohang o nang le moeli o phatlohang oa 1.2% ~ 7.0% (vol).E na le chefo e ngata, 'me khase ea aniline e chefo e lokolloa ke ho bola ha matla a mocheso a phahameng.E ka kenngoa ka letlalo 'me ea baka chefo, LD501410mg/kg, tekanyo e phahameng e lumelletsoeng moeeng ke 5mg/m3.

Mokhoa oa ho boloka

1.Litlhokomeliso tsa Polokelo[25] Boloka ka tlung ea polokelo e pholileng, e nang le moea o motle.E-ba hōle le mehloli ea mollo le mocheso.Boloka setshelo se tiisitsoe.E lokela ho bolokoa ka thoko ho li-acids, halogens, le lik'hemik'hale tse jeoang, 'me ha ho mohla e tsoakiloeng.Ho hlomelloa ka mefuta e fapaneng le bongata ba lisebelisoa tsa ho tima mollo.Sebaka sa polokelo se lokela ho ba le lisebelisoa tsa phekolo ea tšohanyetso bakeng sa ho lutla le lisebelisoa tse loketseng tsa bolulo.

2. Amohela moqomo oa tšepe o tiisitsoeng, 180kg ka moropa o mong le o mong, 'me u o boloke sebakeng se phodileng le se nang le moea o pholileng.Boloka le ho tsamaisa ho latela melaoana ea thepa e tukang le e chefo.

mokhoa oa ho kopanya

1. E fumanoa ka karabelo pakeng tsa aniline le methanol ka boteng ba sulfuric acid ka mocheso o phahameng le khatello e phahameng.Phallo ea ts'ebetso:1.790kg ea aniline, 625kg ea methanol, 85kg ea sulfuric acid (ammonium 100%) e kenngoa ka kettle ea karabelo, mocheso oa taolo 210-215.℃, khatello ea 3.1MPa, e arabela bakeng sa 4h, ebe e lokolla khatello, thepa e ntšoa ho ea karohano, e sa nke lehlakore ka 30% ea sodium hydroxide, static, 'me letsoai le tlaase la quaternary ammonium le arohane.Joale ka 160℃, 0.7-0.9MPa hydrolysis reaction bakeng sa 3h, lihlahisoa tsa hydrolysis le karolo e ka holimo ea thepa e mafura e kopantsoeng ka ho hlatsoa ka mor'a hore ho be le vacuum distillation ea sehlahisoa se felileng.

2. Ho sebelisa methanol le aniline e le lisebelisoa tse tala, e entsoe ke alumina catalyst tlas'a boemo ba 200-250.℃ka methanol e feteletseng le khatello ea sepakapaka.Tekanyo ea tšebeliso ea thepa e tala: aniline 790kg/t, methanol 625kg/t, sulfuric acid 85kg/t.Tokisetso ea laboratori e ka sebetsana le aniline ka trimethyl phosphate.

3. aniline le methanol e tsoakiloeng (n aniline: n methanol≈1:3), 'me ka pompo ea metering e sa phekoleheng e kentsoeng ka lebelo la moea la 0.5h-1 ka har'a setsi sa motlakase se nang le mochini o thusang, ho tsoa ho qala ho kenella ka har'a karohano ea mokelikeli oa gase, s.eparator tlas'a mokelikeli o bokelloang ka linako tse tloaelehileng o tlosoa bakeng sa tlhahlobo ea chromatographic.

Ka 2001, Univesithi ea Nankai le Tianjin Ruikai Technology Development Co., Ltd. ka kopanelo ba ile ba theha aniline methylation catalyst e sebetsang hantle haholo, 'me ba hlokomela motsoako oa khase oa N,N-dimethyl aniline.Ts'ebetso e tjena: Aniline ea metsi e kopantsoe le methanol, e entsoe mouoane ka har'a tora ea mouoane, ebe e kenngoa ka har'a mochine o motlakase o nang le lebelo la moea la 0.5-1.0h-1 (bethe e tsitsitseng ea mochine o motlakase o na le nano e tletseng. -solid catalyst), 'me e tsoela pele ho hlahisoa ho 250-300℃under khatello ea sepakapaka, e nang le tlhahiso ea DMA e fetang 96%.

Mokhoa oa ho hloekisa: Hangata e na le litšila tse kang aniline le N-methyl aniline.N,N-dimethylaniline e qhibiliha ka 40% ea sulfuric acid 'me e hloekisoa ke mouoane oa metsi.Sodium hydroxide e eketsoa ho e etsa alkaline.The distillation e tsoela pele ka mouoane oa metsi.Distillate e arotsoe ka likarolo tse nang le metsi 'me e omisitsoe ka potassium hydroxide.Tloaelehileng khatello ea distillation e etsoa ka pel'a acetic anhydride.Distillate e hlatsuoa ka metsi ho tlosa mesaletsa ea acetic anhydride, e omisitsoeng ka potassium hydroxide, e lateloe ke barium oxide, 'me e silafatsoe tlas'a khatello e fokotsehileng ka pel'a metsi a naetrojene.Mekhoa e meng ea ho hloekisa distillate e kenyelletsa ho eketsa 10% acetic anhydride le refluxing ka lihora tse 'maloa ho tlosa li-amine tsa mantlha le tsa bobeli.Ka mor'a ho pholile, ho feta 20% hydrochloric acid e kenngoa 'me e ntšoa ka ether.Lera la hydrochloric acid le alkaline le alkaline ebe le ntšoa ka ether, 'me lesela la ether le omisitsoe ka hydroxide ea potasiamo le ho silafatsoa tlas'a khatello e fokotsehileng tlas'a molapo oa naetrojene.N, N-dimethylaniline e ka boela ea fetoloa letsoai la picric acid, la tsosolosoa ho ea sebakeng se tsitsitseng sa ho qhibiliha ebe se qhibiliha ka metsi a futhumetseng a 10% a sodium hydroxide.E ntan'o ntšoa ka ether, e hlatsuoa le ho omisoa, ebe e silafatsoa ka tlas'a khatello e fokotsehileng.

5. Aniline, methanol le sulfuric acid e tsoakiloeng ka tekanyo, condensation reaction ka autoclave, lihlahisoa tsa karabelo ka ho hlaphoheloa ha khatello ea methanol, eketsa alkali neutralization, karohano 'me joale distillation ka ho fokotsa khatello ea ho fumana sehlahisoa.

6. N, N-dimethylaniline e ka hlahisoa ke methylation reaction ea aniline le trimethyl phosphate, ebe e ntšoa ka ether, e omisitsoeng le e silafalitsoeng.

7. N, N-dimethylaniline e ka etsoa ka bethe ea catalytic ea Ziegler catalyst tsamaisong ea koporo-manganese kapa tsamaiso ea koporo-zinc-chromium ho 280.℃ka motsoako oa aniline le methanol ka karolelano ea 1: 3.5.N, N-dimethylaniline e fumanoeng e ile ea bokelloa ho 193-195℃ka mochine oa distillation oa li-tab tse 54 'me o kenngoa ka libotlolong tsa khalase tse sootho.Bakeng sa ho lokisa N,N-dimethylaniline e hloekileng, N,N-dimethylaniline e ka kenngoa ka khase ea naetrojene e le khase e tsamaisang khase ea chromatograph ea khase.ch e na le kholomo ea phosphate ea tšepe.

Kopo e ka sehloohong

1. Ke e 'ngoe ea lisebelisoa tsa motheo tsa tlhahiso ea dyestuff e entsoeng ka letsoai (triphenylmethane dyestuff, joalo-joalo) le alkali dyestuff.2. E sebelisoa e le solvent, metal preservative, folisa agent bakeng sa epoxy resin, folisa accelerant bakeng sa polyester resin, co-catalyst bakeng sa polymerization ea metsoako ea ethylene, joalo-joalo E boetse e sebelisetsoa ho lokisetsa lidae tsa alkaline triphenylmethane, azo dyes le vanillin, joalo-joalo. 3. E boetse e sebelisoa ha ho etsoa li-alkaline triphenylmethane dyes, azo dyes le vanillin, joalo-joalo 3. E sebelisoa e le mohloli oa ho etsoa ha foam ea polyurethane ka ho sebelisana le metsoako ea organotin.E boetse e sebelisoa e le sesebelisoa sa ho etsa foam ea polyurethane hape e le thepa e tala bakeng sa motšehetsi oa rabara vulcanization, liqhomane le meriana.N,N-Dimethylaniline e sebelisoa indastering ea meriana ho hlahisa cephalosporin V, sulfamethoxine N-methoxypyrimidine, sulfamethoxine o-dimethoxypyrimidine, fluorosporine, joalo-joalo E boetse e sebelisoa indastering ea litlolo ho hlahisa vanillin.4. E sebelisoa e le accelerator e phekolang bakeng sa epoxy resin, resin ea polyester le sekhomaretsi sa anaerobic, e le hore sekhomaretsi sa anaerobic se tiee kapele.E ka boela ea sebelisoa e le solvent, co-catalyst for polymerization of ethylene compounds, metal preservative, an ultraviolet absorber for cosmetics, photosensitizer, joalo-joalo E ka boela ea sebelisoa e le sesosa sa ho etsa lidae tsa alkaline, qhala lidae, lidae acid, lidae tse qhibilihang ka oli le monko o monate (vanillin), joalo-joalo E boetse e sebelisoa e le lisebelisoa tse tala bakeng sa ho etsa lidae tsa alkaline, lidae tse qhalaneng, lidae tsa asiti, lidae tse qhibilihang ka oli le linoko (vanillin), joalo-joalo. e sebelisoa e le reagent bakeng sa qeto ea photometric ea nitrite.E boetse e sebelisoa joalo ka mokelikeli, 'me e sebelisoa ho organic synthesis.6.E sebelisoa e le li-intermediates tsa dae, li-solvents, stabilizers, li-reagents tsa analytical.[26]