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CAS Mba [95-68-1] Usoro mmepụta. 2,4-Dimethylaniline
Aha CAS: Benzenamine, 2,4-dimethyl- Ntughari akụkọ ihe mere eme: beil. 11, 1111; E1, 483; E2, 606; E3, 2469; E4, 2545.
Jiri: acid oroma 17, 24. acid red 8, 26, 26: 1, 26: 2, 40, 135, 336. ice-dye njikọta mkpụrụ akụkụ 29. ​​acha ọbara ọbara 126, 168, 264. violet 14. kesaa edo 11 .
Nri edo edo 12. Nri na-acha uhie uhie 5. Mgbaze odo 18, 44, 126. Mgbaze oroma 7, 30. Ngalaba mmeghachi omume: nitro Mbelata.
BIOS 1146, 53. 2,4-Dimethylaniline. 2,4-Dimethylaniline. Nsụgharị si na German. Ọ bụghị na nchịkọta m.

N'ime arịa mbelata 10 m3 nke nwere reflux condenser, 1800 L mmiri, 500 L nke 20% ferrous chloride solution na 800 kg nke natara ntụ ntụ site na nke gara aga agbakwunye. A kpaliri ọgbụgba ọkụ ma webata ihe ngwọta site na ikpo ọkụ ọkụ. N'ime awa iri abụọ na ise 2500 L (2800 n'arọ) nke 4-nitro m-xylene na 2500 n'arọ nke ntụ ntụ e tinyere na mbelata, ọnụego nke mgbakwunye gbanwere iji mee ka ngwakọta na-esi, a chọrọ uzuoku naanị na mbido na njedebe. Uzuoku na-esi na ihe na-ebelata ihe na-eme ka ihe na-eme ka agwọ dị na agwọ ma laghachi na onye na-ebelata ya (site na igwekota, agwakọta ya na 4-nitro m-xylene) ebe etinyere ihe nitro n'ụzọ dị otú a iji mepụta nkwụsị dị jụụ. Mgbe ule condensate sample bụ nke xylene, Mbelata ahụ zuru ezu ma kpalite ọzọ ruo awa 4-5.
Ule: A na - ewepụta ihe nlele site na mbelata maka distillation uzuoku, mmanụ sitere na mkpụrụ ndụ ahụ ga - abụ nke na - enweghị ụcha ma mepụta azịza doro anya na acid hydrochloric.
Mwepu: a na-etinye ihe si na mbenata ngwa ahụ n'ime onye na-ewepụta ihe ma mesoo ya na 6000 L nke benzene na 60 Celsius C ma kpalite, a na-emegharị ngwakọta maka awa 1 ma hapụ ka ọ kwụrụ maka 1 awa. Ekpebiri njikọ dị n’etiti mmiri na akpụrụ mmiri site na imikpu eriri nke ejikọtara na mmiri na benzene mana na-ese n’elu mmiri, ya bụ, ịdị omimi nke elu mmiri ahụ. A gram nke usoro imikpu tube na-agbada n'okpuru ọkwa a tụrụ, na akwa oyi akwa benzene na-agbanye n'ime mmiri ahụ na nitrogen. A na-emeputa ihe a ugboro 6-7, na mmịpụta ahụ zuru ezu mgbe naanị 3-5 n'arọ nke m-xylene amine na-anọgide na onye na-ewepụta ihe.
A na-eziga ihe atọ ndị mbụ nwere gravities a kapịrị ọnụ banyere ihe dị ka 0.96, 0.925 na 0.90 na benzene mgbake distillation kettle, a na-ejikwa ọtụtụ ihe ndị ọzọ na-esote na gravities ụfọdụ dị n'okpuru 0.90 dị ka ndị na-ewepụta nke mbụ, nke abụọ na nke atọ nke ihe na-esote. A na-ahapụ ihe ngwọta benzene nke xylenolamine na nchekwa nchekwa ma zigara ya kettle distillation, ebe a na-ekpochapụ benzene ma laghachi na ngalaba mmịpụta ahụ maka iji ya mee ihe ọzọ. Xylenolamine na-anọgide na ntugharị distillation.
Ihe mmiri fọdụrụ na mmiri mmiri na-ewepụta mmiri maka 4-5 awa iji weghachite benzene, wee jikọta ngwakọta dum na nrụgide ikuku n'ime ogige nkewapụ ogige, na nrụgide n'ime ala nke nkewapụ iji gafere mmiri, gafere ọsọ mmiri iji mee iron oxide sere n'elu, site n'elu outflow na ígwè sludge nchekwa tank, ebe ihapu nke mmiri mmiri.
Unregwè mkpochapu a na-emezighị emezi, nke dị arọ karịa igwe oxide, na-agbada na ala nke onye na-ekewapụta ihe dị na 800-1000 n'arọ ma weghachite ya na mpempe akwụkwọ mbelata ọzọ.
Distillation: Ngwaahịa sitere na kọlụm distillation, mgbe mwepụsịrị benzene, a na-ebufe ya na kettle ọzọ na kọlụm, ebe a na-anụcha ya site na otu distillation na 20-30 mm na 125-135 ° C. The distillation arụmọrụ bụ 97-98%. The distillation arụmọrụ bụ 97-98%.
Mkpokọta mkpụrụ bụ 90-91%. Mgbe distillation, m-Xylene-4-aniline kwesịrị ka o doo anya na-acha odo odo na agba. Ngwọta dị na acid hydrochloric kwesịrị ido anya.
PB 25624, 1151. xylidine. 2,4-xylene-aniline Devon usoro mmepụta. (Powderzọ Mbelata ntụ ntụ) E depụtaghị ya.
Tianjin Wuyi Chemical Factory, Tianjin Dye Research Institute. Nchịkọta obere ule maka 2,4-Dimethylaniline dị ka etiti nke odo odo. [J] Dyestuff Industrylọ ọrụ, 1970, 5/6, 84-85 (62).
Ọrụ usoro: (mgwa ruru: ubé). Tinye mmiri, hydrochloric acid na iron powder n'ime karama 3000 ml na ngwaọrụ na-akpali akpali ma na-agbapụta ume, kpalite nkeji iri na ise, wee jiri nwayọ mụbaa ọnọdụ okpomọkụ na 90-98 ℃ wee bido itinye nitroxide. Ọ bụrụ na nitroxide ga-apụ n'anya, mgbe ahụ gaa n'ihu ịgbakwunye nitroxide, na-abụkarị n'ime awa 1.5-2. Mgbe ịtinye nitroxide, debe mmeghachi omume na ọnọdụ dị n'elu maka awa 2-2.5, ruo mgbe osmosis na-acha odo odo ga-apụ n'anya ma ọ nweghị isi nke nitroxide, mmebi mbelata ahụ ga-eru na njedebe. Mgbe ahụ jụụ ruo 40-50 ℃, gbakwunye sodium carbonate na neutralize na pH 7.5-8, wee tụọ ndị na-eme ihe na-anọpụ iche na akwụkwọ nza na alkali sulfide solution.
Na 2000 ml nke karama atọ n'ime Mbelata nke ndị na-eme ihe, tupu ịpị mpempe akwụkwọ dị ala maka generator vapo mmiri, na-esote condenser tube, onye na-ekpuchi ihe n'azụ onye na-ebu ihe, na Mbelata nke karama ọnụ atọ ahụ, tinye ihe ọkụ ọkụ ọkụ eletrik, mgbe onye na-ebu distillate ahụ zuru ezu, na-abanye n'ime olulu mmiri ka ekewapụ ya na akwa, m-xylene amines, wee tụọ ka a nyochaa ya.
Tianjin Wuyi Chemical Factory, Tianjin Dye Research Institute. Nchịkọta nke 2,4-xylene amine obere ule. [J] Dyestuff Industry, 1975, 2, 63. Nchịkọta Shenyang Institute Nchịkọta Nke 75067.
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