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CAS Nha. [95-68-1] Maitiro ekugadzira. 2,4-Dimethylaniline
Zita reCAS: Benzenamine, 2,4-dimethyl- Nhoroondo dzezvakanyorwa: beil. 11, 1111; E1, 483; E2, 606; E3, 2469; E4, 2545.
Zvishandiso: acid orange 17, 24. acid tsvuku 8, 26, 26: 1, 26: 2, 40, 135, 336. chando-dhayi rinobatanidza chidimbu 29. yakatsvuka yakatsvuka 126, 168, 264. yakananga violet 14. inoparadzira yero 11 .
Chikafu yero 12. Chikafu chitsvuku 5. Solvent yero 18, 44, 126. Solvent orenji 7, 30. Reaction chikamu: nitro rutapudzo.
BIOS 1146, 53. 2,4-Dimethylaniline. 2,4-Dimethylaniline. Shanduro yeBritish kubva kuGerman. Kwete muunganidzwa wangu.

Mune 10 m3 yekudzikisa ngarava ine reflux condenser, 1800 L yemvura, 500 L ye20% ferrous chloride solution uye 800 kg yeupfu hwesimbi hwakawanikwazve kubva kune yapfuura batch yakawedzerwa. Kukuchidzira kwakatangwa uye mhinduro yakaunzwa kumota nekunonoka kupisa moto. Mukati memaawa makumi maviri nemashanu 2500 L (2800 kg) ye4-nitro m-xylene uye 2500 kg yehupfu yesimbi yakawedzerwa kune reductor, chiyero chekuwedzera chakagadziriswa kuchengetedza musanganiswa uchibika, hutsi hwaidikanwa chete pakutanga nekuguma. Mhepo inoputika kubva mueductor inodzikama mune yenyoka inogadzirisa uye inodzoserwa kune reductor (kuburikidza nemusanganisi, yakasanganiswa ne4-nitro m-xylene) uko iyo nitro yekuwedzera inosanganiswa nenzira iyi kugadzira kudzikama kwakadzikama. Kana iyo muyedzo condensate sampu isina xylene, iyo kudzikiswa kwapera uye yakamutsidzirwa kweimwe 4-5 maawa.
Bvunzo: Masampuli anotorwa kubva kune reductor yeiyo steam distillation, mafuta kubva muchikamu anofanira kunge asina ruvara uye achiburitsa mhinduro yakajeka nehydrochloric acid.
Kubvisa: izvo zvinhu kubva kumidziyo yekudzora yakamanikidzwa kupinda mu extractor uye inorapwa ne6000 L ye benzene pa60 ° C uye yakamutswa, musanganiswa unomutswa kwe1 awa uye wasara kuti umire kwe1 awa. Kubatana pakati pemvura nechando kwakatemwa nekunyudza tambo yakasungirirwa kune ichiyangarara mubenzini asi ichiyangarara pamusoro pemvura, kureva, kudzika kwenzvimbo yakatwasuka. Iyo gramu yakagadziriswa kunyudza chubhu inoderedzwa pazasi peyero yakayerwa, uye iyo yepamusoro benzene denderedzwa inomanikidzwa kupinda mudziva rine nitrogen. Uku kuburitsa kunoitwa ka6-7 nguva, uye kubviswa kwacho kunopera kana kwasara mukadhibhori m-xylene amine inosvika 3-5 kg.
Iwo matatu ekutanga anotora ane chaiwo akasimba eanosvika 0.96, 0.925 uye 0.90 anotumirwa kune benzene yekudzosa distillation keturu, uye anotevera akati wandei ane akasarudzika magiravhiti pazasi pe0.90 anoshandiswa seanoburitsa yekutanga, yechipiri neyechitatu kubviswa kweinotevera batch. Mhinduro yebenzene ye xylenolamine inosara mutangi yekuchengetera uye inotumirwa kugaba remadhibhodhi, uko benzene inopwa nemhepo ndokudzoserwa kuchikamu chekubvisa kuti chiwedzere kushandiswa. Iyo xylenolamine inoramba iri muketillill kettle.
Iyo yakasara yemvura yakasara mune iyo inonotora steam distillation kwemaawa 4-5 kuti itore benzene, uyezve iyo yose musanganiswa nemhepo kumanikidza kupinda mubindu chikamu separator, mune kumanikidza kupinda pasi peparadzanisi kupfuudza mvura, pfuura kumhanya kwemvura kugadzira iron oxide ichiyangarara, kuburikidza nekubuda kwepamusoro kuenda kune simbi sludge yekuchengetera tangi, uko kunoyerera kwemvura yakasviba.
Iyo isina kugadziriswa simbi chinyorwa, inorema kupfuura iyo oxide yesimbi, inonyura pasi pechikamu cheiyi cylindrical muhuwandu hwe800-1000 kg uye inodzoserwa kune inotevera batch yekudzikisa ketera.
Distillation: Chigadzirwa chisina kuchena kubva kukoramu yedhiringi, mushure mekubviswa kwe benzene, inoendeswa kune imwe keturu yedhizaini nekoramu, uko inonatswa neine imwechete distillation pa 20-30 mm uye 125-135 ° C. Iyo distillation kunyatsoshanda ndeye 97-98%. Iyo distillation kunyatsoshanda yaive 97-98%.
Goho rese i90-91%. Mushure me distillation, m-Xylene-4-aniline inofanirwa kuve yakajeka uye yakajeka yeyero muvara. Mhinduro muhydrochloric acid inofanira kunge yakajeka.
PB 25624, 1151. xylidine. 2,4-xylene-aniline Devon yekugadzira maitiro. (Iron poda yekudzora nzira) Haina kuteedzerwa.
Tianjin Wuyi Chemical Fekitori, Tianjin Dye Yekutsvagisa Institute. Pfupiso yemubvunzo mudiki we2,4-Dimethylaniline seyakaganhurirwa nemoni yero. [J] Dyestuff Indasitiri, 1970, 5/6, 84-85 (62).
Nzira yekushanda: (ingredient ratio: zvishoma). Wedzera mvura, hydrochloric acid uye poda yesimbi mubhodhoro re3000 ml nechinhu chinomutsidzira uye chinopinza, fambisa maminetsi gumi nemashanu, wobva wawedzera zvishoma nezvishoma tembiricha kusvika 90-98 ℃ uye wotanga kuwedzera nitroxide. Kana iyo nitroxide ikanyangarika, saka ramba uchiwedzera iyo nitroxide, kazhinji mukati meawa 1.5-2. Mushure mekuwedzera iyo nitroxide, chengetedza maitiro pane tembiricha iri pamusoro kwemaawa 2-2.5, kudzamara yero osmosis yanyangarika uye pasina hwema hwe nitroxide, iyo yekudzora maitiro inosvika kumagumo. Wobva watonhorera pasi kusvika pa40-50 ℃, wedzera sodium carbonate uye wedzera pH 7.5-8, wozoyera zvisina kugadziriswa zvinogadziriswa pafirita bepa ine alkali sulfide solution.
Muna 2000 ml yemabhodhoro matatu mukudzikisira kwemaakisi, usati wadzvanya pabhokisi rakadzika-pasi kune jenareta yemvura, ichiteverwa yakatwasuka chubhu condenser, iyo condenser kuseri kwemutakuri wemidziyo, mukuderedza bhodhoro remiromo mitatu, isa yemagetsi choto kudziyisa, kana mutakuri weiyo distillate izere, famba uchienda mune yemvura fanera kuti ipatsanurwe kuita zvidimbu, m-xylene amines kunze, uye wozoyera kuongororwa.
Tianjin Wuyi Chemical Fekitori, Tianjin Dye Yekutsvagisa Institute. Pfupiso ye2,4-xylene amine diki bvunzo. [J] Dyestuff Indasitiri, 1975, 2, 63. Shenyang Institute Kuunganidzwa Nha. 75067.
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