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CAS No. [95-68-1] Njira zopangira. 2,4-Dimethylaniline
Dzina la CAS: Benzenamine, 2,4-dimethyl- Zolemba Zakale: beil. 11, 1111; E1, 483; E2, 606; E3, 2469; E4, 2545.
Ntchito: asidi lalanje 17, 24. asidi wofiira 8, 26, 26: 1, 26: 2, 40, 135, 336. utoto wophatikiza utoto wophatikizana 29. molunjika wofiira 126, 168, 264. molunjika violet 14. kumwazikana wachikasu 11 .
Chakudya chachikasu 12. Chakudya chofiira 5. Zosungunulira zachikaso 18, 44, 126. Zosungunulira lalanje 7, 30. Gulu logwira ntchito: kuchepetsa nitro.
Zamgululi: BIOS 1146, 53. 2,4-Dimethylaniline. 2,4-Dimethylaniline. Kutanthauzira kwaku Britain kuchokera ku Chijeremani. Osati mukutolera kwanga.

Mu chotengera chochepetsera 10 m3 chokhala ndi chopukutira Reflux, madzi okwanira 1800 L, 500 L ya 20% ferrous chloride solution ndi 800 kg ya ufa wachitsulo womwe udapezedwa mgulu lakale lidawonjezeredwa. Kulimbikitsa kunayambika ndipo yankho linabweretsedwa ku chithupsa ndi kutentha kwachangu. Pakadutsa maola 20 2500 L (2800 kg) ya 4-nitro m-xylene ndi 2500 kg ya ufa wachitsulo adawonjezeredwa ku reductor, kuchuluka kwake kunasinthidwa kuti kusakaniza kusazame, nthunzi imangofunika koyambirira ndi kumapeto. Mpweya wotuluka kuchokera mu reductor umasungunuka ndi chofufumitsira njoka ndipo umabwezedwa ku reductor (kudzera chosakanizira, chophatikiza ndi 4-nitro m-xylene) pomwe chowonjezera cha nitro chimasungunulidwa mwanjira imeneyi kuti ichepetse bata. Pomwe mayeso a condensate alibe xylene, kuchepetsedwa kumatha ndipo kumalimbikitsidwa kwa maola ena 4-5.
Mayeso: Zitsanzo zimachotsedwa mu reductor ya distillation ya nthunzi, mafuta ochokera mu kachigawo kameneka sayenera kukhala opanda utoto ndikupanga yankho lomveka bwino ndi hydrochloric acid.
Kuchulukitsa: zomwe zimachokera kuzida zochepetsera zimakanikizidwa mu chosakanizira ndikuchiritsidwa ndi 6000 L ya benzene pa 60 ° C ndikuzimitsa, kusakaniza kumayambitsidwa kwa ola limodzi ndikusiya ola limodzi. Kulumikizana pakati pamadzi ndi ayezi kumatsimikizika ndikumira chingwe chomwe chimamangiriridwa ku benzene koma choyandama pamadzi, mwachitsanzo, kuya kwa malo opingasa. Gulu la chubu lolowetsa m'madzi limatsitsidwa pansi pamlingo woyeserera, ndipo gawo lakumtunda la benzene limakanikizidwa mchitsime ndi nayitrogeni. Kuchotsa kumeneku kumachitika maulendo 6-7, ndipo kumalizika kwake kumangotsala makilogalamu 3-5 a m-xylene amine otsalira.
Zotulutsa zitatu zoyambirira zokhala ndi ma gravity pafupifupi a 0.96, 0.925 ndi 0.90 zimatumizidwa ku ketulo yochotsa mafuta a benzene, ndipo zotsalira zingapo zotsatirazi zokhala ndi ma gravities apansi pa 0.90 zimagwiritsidwa ntchito ngati zotulutsira gawo loyamba, lachiwiri ndi lachitatu la batchi yotsatira. Njira yothetsera benzene ya xylenolamine imasiyidwa mu thanki yosungira ndikutumizidwa ku ketulo ya distillation, komwe benzene imasanduka nthunzi ndikubwezeretsedwera m'chigawocho kuti ikagwiritsidwenso ntchito. Xylenolamine amakhalabe mu ketulo wa distillation.
Malo amadzimadzi otsalira mu distillation ya nthunzi kwa maola 4-5 kuti abwezeretse benzene, kenako chisakanizo chonse ndi mpweya mu olekanitsa mundawo, ndikulowetsa pansi pa olekanitsa kuti adutse madzi, kudutsa liwiro lamadzi kuti apange chitsulo chosayidi chikuyandama, kudutsa kutuluka pamwamba kupita kusanki yosungira sludge, komwe kumatulutsa madzi onyansa.
Chidutswa chachitsulo chosavutikira, cholemera kwambiri kuposa okusayidi wachitsulo, chimamira mpaka pansi pa chopatulira chama cylindrical mu kuchuluka kwa makilogalamu 800-1000 ndipo chimabwezeretsedwanso pagulu lotsatira la ketulo yochepetsera.
Distillation: Chogulitsidwacho kuchokera pachipilala, pambuyo pochotsa benzene, chimasinthidwa kupita ku ketulo ina ya distillation yokhala ndi mzati, pomwe imakonzedwa ndi distillation imodzi pa 20-30 mm ndi 125-135 ° C. Kutulutsa bwino kwa distillation ndi 97-98%. Ma distillation anali 97-98%.
Zokolola zonse ndi 90-91%. Pambuyo pa distillation, m-Xylene-4-aniline ayenera kukhala wowoneka bwino komanso wonyezimira. Njira yothetsera hydrochloric acid iyenera kukhala yomveka.
PB 25624, 1151. xylidine. Njira yopanga 2,4-xylene-aniline Devon. (Njira yochepetsera ufa wa Iron) Osatengera.
Tianjin Wuyi Chemical Factory, Tianjin Dye Research Institute. Chidule cha mayeso ang'onoang'ono a 2,4-Dimethylaniline ngati pakatikati pa chikasu cha mandimu. [J] Makampani a Dyestuff, 1970, 5/6, 84-85 (62).
Njira yogwiritsira ntchito: (chiŵerengero cha zosakaniza: pang'ono). Onjezerani madzi, hydrochloric acid ndi ufa wachitsulo mu botolo la 3000 ml ndi chida chogwedeza ndi chosakanikirana, sakanizani kwa mphindi 15, kenako muwonjezere kutentha mpaka 90-98 ℃ ndikuyamba kuwonjezera nitroxide. Ngati nitroxide ikasowa, pitirizani kuwonjezera nitroxide, nthawi zambiri mkati mwa maola 1.5-2. Pambuyo powonjezera nitroxide, sungani zomwe zachitika pamwambapa kwa maola 2-2.5, mpaka osmosis wachikaso amatha ndipo palibe fungo la nitroxide, zomwe zimachepetsa zidzafika kumapeto. Kenako kuzizirirani mpaka 40-50 ℃, onjezerani sodium carbonate ndikusinthasintha kukhala pH 7.5-8, ndiyeno muyese zotulutsa zopanda pake pamapepala osungunulira okhala ndi alkali sulfide solution.
Mu 2000 ml ya mabotolo atatu pakuchepetsa ma reactants, musanakanikizire botolo lathyathyathya la jenereta yamadzi, lotsatiridwa ndi chubu chowongoka, chozungulitsira kuseri kwa wonyamula distillate, pochepetsa botolo la milomo itatu, ikani Kutentha kwa ng'anjo yamagetsi, wonyamula distillate yonse, amasunthira mumtsuko wamadzi kuti ugawanikane, m-xylene amines kunja, kenako ndiyeso kuti awunikidwe.
Tianjin Wuyi Chemical Factory, Tianjin Dye Research Institute. Chidule cha mayeso ang'onoang'ono a 2,4-xylene amine. [J] Makampani a Dyestuff, 1975, 2, 63. Shenyang Institute Collection No. 75067.
Izi ziyenera kunenedwa kuti: Makampani Opanga Dye am'mbuyomu sanatumizedwe kunja, chifukwa chake CA sinachotse, ndipo palibe amene ku China adalemba kale mpaka pano, kotero China Chemical Information Center sikudziwa za izo!