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Inqubo ye-CAS No. [95-68-1] Inqubo Yokukhiqiza. 2,4-I-Dimethylaniline
Igama le-CAS: I-Benzenamine, i-2,4-dimethyl- Izinkomba Zomlando: ibheyili. 11, 1111; E1, 483; E2, 606; E3, 2469; E4, 2545.
Ukusetshenziswa: i-asidi ewolintshi 17, 24. i-asidi ebomvu 8, 26, 26: 1, 26: 2, 40, 135, 336. ingxube yedayi yokuhlanganisa u-ice 29. iqonde ngqo obomvu 126, 168, 264. i-violet eqondile 14. ihlakaze okuphuzi 11 .
Ukudla okuphuzi 12. Okubomvu kokudla 5. I-solvent yellow 18, 44, 126. I-solvent orange 7, 30. Isigaba sokuphendula: ukunciphisa i-nitro.
I-BIOS 1146, 53. 2,4-Dimethylaniline. 2,4-I-Dimethylaniline. Ukuhumusha kwaseBrithani kusuka eJalimane. Hhayi eqoqweni lami.

Emkhunjini wokwehliswa ka-10 m3 onefekithri ye-reflux, i-1800 L yamanzi, i-500 L yesisombululo se-chloride esine-20% kanye ne-800 kg yempuphu yensimbi etholakele eqenjini langaphambilini lengeziwe. Ukuvuselela kwaqalwa futhi isixazululo salethwa emathunjini ngokushisa okuqondile kwe-steam. Kungakapheli amahora angama-25 2500 L (2800 kg) we-4-nitro m-xylene no-2500 kg we-powder yensimbi afakwa ku-reductor, izinga lokungezwa kwalungiswa ukugcina ingxube ibila, umusi wawudingeka kuphela ekuqaleni nasekupheleni. Umusi ohwamuka usuka lapho kudonswa khona i-reductor uvuthwa ngesigaxa sezinyoka futhi ubuyiselwa ku-reductor (ngomxube, oxutshwe ne-4-nitro m-xylene) lapho isithasiselo se-nitro sihlanjululwa ngale ndlela ukukhiqiza ukuncipha okuthulile. Lapho isampula yokuhlolwa kwe-condensate ingenayo i-xylene, ukuncishiswa kuqediwe futhi kuvuselelwa amanye amahora angu-4-5.
Isivivinyo: Amasampula athathwe kwi-reductor ye-distillation ye-steam, uwoyela ovela engxenyeni kufanele ungabi nombala futhi ukhiqize isisombululo esicacile nge-hydrochloric acid.
Isizinda: okokusebenza okuvela kuzinto zokunciphisa kuyacindezelwa ku-extractor futhi kuphathwe nge-6000 L ye-benzene ku-60 ° C bese inyakaziswa, ingxube inyakaziswa ihora eli-1 bese ishiywa ime ihora elilodwa. Ukuxhumana phakathi kwamanzi neqhwa kunqunywa ngokucwilisa intambo eboshelwe entanta nge-benzene kodwa entanta emanzini, okungukuthi, ukujula kwendawo evundlile. Igremu leshubhu lokucwilisa elilawulwayo lehliswa ngaphansi kwezinga elilinganisiwe, futhi ungqimba olungaphezulu lwe-benzene lucindezelwe echibini eline-nitrogen. Lokhu kukhishwa kwenziwa izikhathi ezi-6-7, futhi ukukhishwa kuqediwe lapho kusala kuphela i-3-5 kg ​​ye-m-xylene amine ekhoneni.
Izicucu ezintathu zokuqala ezinamandla adonsela phansi acishe abe ngu-0.96, 0.925 kanye no-0.90 athunyelwa eketeleni le-benzene recovery distillation, kanti okukhishwa okulandelayo okuningana kunamandla adonsela phansi angaphansi kuka-0.90 kusetshenziswa njengezikhipheli zokukhishwa kokuqala, kwesibili nokwesithathu kwenqwaba elandelayo. Isixazululo se-benzene se-xylenolamine sishiywa ethangini lokugcina bese sithunyelwa eketeleni le-distillation, lapho i-benzene ihwamuka ibuyiselwe esigabeni sokukhishwa ukuze isetshenziswe futhi. I-xylenolamine ihlala eketeleni le-distillation.
Insalela yesigaba samanzi esiphuzweni se-extractor se-4-5 amahora ukuthola i-benzene, bese kuthi yonke ingxube nengcindezi yomoya iye kusihlukanisi sekholamu yensimu, ekucindezelekeni kube phansi kwesihlukanisi ukudlulisa amanzi, kudlule isivinini samanzi ukwenza i-iron oxide entantayo, ngokusebenzisa ukuphuma okuphezulu kuya ethangini lesitoreji sensimbi, lapho kukhishwa khona amanzi angcolile.
Isigaxa sensimbi esingasetshenziswanga, esisindayo kune-oxide yensimbi, sicwila ezansi kwesihlukanisi se-cylindrical ngobuningi be-800-1000 kg futhi sibuyiselwa eqenjini elilandelayo leketela lokunciphisa.
Ukuphuziswa kwesiphuzo: Umkhiqizo ongahluziwe ovela kukholamu we-distillation, ngemuva kokukhishwa kwe-benzene, udluliselwa kwelinye iketela le-distillation ngekholomu, lapho lihlanjululwa khona nge-distillation eyodwa ku-20-30 mm no-125-135 ° C. Ukusebenza kahle kwe-distillation kungama-97-98%. Ukusebenza kahle kwe-distillation kwakungu-97-98%.
Isamba esiphelele singu-90-91%. Ngemuva kokuhluzwa, i-m-Xylene-4-aniline kufanele icace futhi ikhanye ngombala ophuzi. Isixazululo ku-hydrochloric acid kufanele sicace.
PB 25624, 1151. xylidine. Inqubo yokukhiqiza engu-2,4-xylene-aniline Devon. (Indlela yensimbi yokunciphisa impuphu) Ayikopiswanga.
ITianjin Wuyi Chemical Factory, iTianjin Dye Research Institute. Isifinyezo sesivivinyo esincane se-2,4-Dimethylaniline njengesixhumanisi sikalamula ophuzi. [J] Imboni yeDyestuff, 1970, 5/6, 84-85 (62).
Inqubo yokusebenza: (isilinganiso sesithako: kancane). Faka amanzi, i-hydrochloric acid kanye ne-powder yensimbi ebhodleleni elingu-3000 ml ngensimbi eshukumisayo ne-refluxing, gxuma imizuzu eyi-15, bese ukhuphula kancane izinga lokushisa liye ku-90-98 ℃ bese uqala ukufaka i-nitroxide. Uma i-nitroxide inyamalala, bese uqhubeka nokufaka i-nitroxide, imvamisa kungakapheli amahora angu-1.5-2. Ngemuva kokufaka i-nitroxide, gcina ukusabela kokushisa okungenhla amahora angama-2-2.5, kuze kube yilapho i-osmosis ephuzi inyamalala futhi kungekho phunga le-nitroxide, ukusabela kokunciphisa kuzofinyelela ekugcineni. Bese upholile uye ku-40-50 ℃, engeza i-sodium carbonate bese unciphise ku-pH 7.5-8, bese ulinganisa iziphenduli ezingathathi hlangothi ephepheni lokuhlunga elinesisombululo se-alkali sulfide.
Ngo-2000 ml wamabhodlela amathathu ekwehliseni ama-reactants, ngaphambi kokucindezela iflask-flated bottom for the vapor generator, kulandele i-straight condenser tube, i-condenser ngemuva kwalowo ophethe i-distillate, ekwehliseni ibhodlela elinemilomo emithathu, faka ukufudumeza kwesithando sikagesi, lapho ophethe i-distillate ngokugcwele, engena kufele wamanzi ukuze ahlukaniswe abe izingqimba, ama-m-xylene amines aphume, bese enesisindo sokuhlaziywa.
ITianjin Wuyi Chemical Factory, iTianjin Dye Research Institute. Isifinyezo se-2,4-xylene amine test encane. [J] Imboni yeDyestuff, 1975, 2, 63. IShenyang Institute Collection No. 75067.
Kumele kuthiwe: Imboni Yodayi edlule ayizange ithunyelwe kwamanye amazwe, ngakho-ke i-CA ayizange iyikhiphe, futhi akekho noyedwa eChina osekhathalile kuze kube manje, ngakho-ke i-China Chemical Information Center ayazi ngayo!