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Lambar CAS [95-68-1] Tsarin samarwa. 2,4-Dimethylaniline
Sunan CAS: Benzenamine, 2,4-dimethyl- Nassoshi na Tarihi: beil. 11, 1111; E1, 483; E2, 606; E3, 2469; E4, 2545.
Amfani da: acid orange 17, 24. acid ja 8, 26, 26: 1, 26: 2, 40, 135, 336. dusar kankara dye hade kashi 29. madaidaiciya ja 126, 168, 264. violet kai tsaye 14. watsa rawaya 11 .
Abincin rawaya 12. Abincin ja 5. Solanƙan rawaya 18, 44, 126. ventarfafa ruwan lemu 7, 30. Rukuni na amsawa: rage nitro.
BIOS 1146, 53. 2,4-Dimethylaniline. 2,4-Dimethylaniline. Fassarar Ingilishi daga Jamusanci. Ba a cikin tarin na ba.

A cikin jirgi mai raguwa na 10 m3 tare da mai sanya ruwa mai narkewa, 1800 L na ruwa, 500 L na 20% maganin karafa na chloride da kilogiram 800 na baƙin ƙarfe da aka dawo da shi daga ƙashin da ya gabata. An fara motsawa kuma an kawo maganin ta tafasa ta zafin dumi kai tsaye. A cikin awanni 20 2500 L (2800 kilogiram) na 4-nitro m-xylene da 2500 kilogiram na baƙin ƙarfe an ƙara su zuwa mai ragewa, an daidaita ƙimar ƙarin don kiyaye cakuda ya tafasa, ana buƙatar tururi ne kawai a farkon da ƙarshen. Tumfar da ke tururin daga mai rage shi yana tarawa a cikin macijin macijin kuma an mayar da shi ga mai ragewa (ta hanyar mahaɗa, wanda aka gauraya da 4-nitro m-xylene) inda ake narkar da sinadarin nitro ta wannan hanyar don samar da raunin da ya fi shuru. Lokacin da samfurin condensate samfurin ya kasance ba tare da xylene ba, an rage raguwa kuma ya zuga na wasu awanni 4-5.
Gwaji: Ana ɗaukar samfura daga ragi don ɓatar da tururi, mai daga ɓangaren dole ne ya zama marar launi kuma ya samar da ingantaccen bayani tare da acid hydrochloric.
Haɗa: kayan daga kayan rage kayan an matse su a cikin mai cirewa kuma ana bi da su tare da 6000 L na benzene a 60 ° C kuma ana zuga su, ana motsa cakuran na awa 1 kuma a barshi ya tsaya na awa 1. Hanyoyin da ke tsakanin ruwa da kankara an tantance ta hanyar nutsar da igiyar da ke tattare da ita a cikin benzene amma tana iyo a kan ruwa, watau zurfin yanayin da ke kwance. An saukar da gram na sarrafa bututun nutsewa ƙasa da matakin da aka auna, kuma ana matse babbar benzene a cikin tafkin tare da nitrogen. Ana aiwatar da wannan hakar sau 6-7, kuma hakar ta cika lokacin da kawai kilogiram 3-5 na m-xylene amine ya rage a cikin mai cirewar.
Manyan abubuwa uku na farko tare da takamaiman kayan amfanin gona na kimanin 0.96, 0.925 da 0.90 an aika su zuwa bututun farfesa na benzene, kuma ana samun amfani da yawa na gaba tare da takamaiman abubuwan da ke ƙasa da 0.90 a matsayin abubuwan cirewa na farko, na biyu da na uku na gaba mai zuwa. Maganin benzene na xylenolamine an bar shi a cikin tanki kuma an aika shi zuwa murhun daskarewa, inda ake fitar da benzene kuma a mayar da shi zuwa ɓangaren hakar don ƙarin amfani. Xylenolamine ya kasance a cikin butar jirgi.
Ragowar lokaci mai ruwa-ruwa a cikin hakar tururin mai cirewa na tsawon awanni 4-5 don dawo da benzene, sannan kuma dukkan cakuda tare da matsewar iska a cikin mai rarrabuwar lambun lambun, a cikin matsi a cikin kasan mai rarrabuwa don wuce ruwa, wuce saurin ruwa don yin iron oxide na iyo, ta hanyar fitowar sama zuwa tankin tara ruɓaɓɓen baƙin ƙarfe, inda fitowar ruwan sharar ruwa.
Ragowar baƙin ƙarfe da ba a taɓa aiki ba, wanda ya fi ƙarfin ƙarfen baƙin ƙarfe, ya nitse zuwa ƙasan mai rarrabuwa a cikin nauyin 800-1000 kuma an mayar da shi zuwa rukuni na gaba na rage bututun mai.
Rarrabawa: Bayanin danyen daga sashin daskarewa, bayan an cire benzene, ana canza shi zuwa wani bututun daskarewa tare da shafi, inda ake tace shi ta hanyar narkewa guda a 20-30 mm da 125-135 ° C. A distillation yadda ya dace ne 97-98%. Ingantaccen tasirin ya kasance 97-98%.
Jimlar yawan amfanin ƙasa shine 90-91%. Bayan narkewa, m-Xylene-4-aniline ya zama mai haske kuma mai haske rawaya cikin launi. Maganin cikin acid hydrochloric yakamata ya bayyana.
PB 25624, 1151. xylidine. 2,4-xylene-aniline Devon aikin samarwa. (Hanyar rage baƙin ƙarfe) Ba a kwafa ba.
Masana'antar Tianjin Wuyi, Cibiyar Nazarin Rini ta Tianjin. Takaitaccen ƙaramin gwaji don 2,4-Dimethylaniline azaman matsakaiciyar lemon rawaya. [J] Masana'antar Dyestuff, 1970, 5/6, 84-85 (62).
Tsarin aiki: (sinadarin rabo: kadan). Ara ruwa, hydrochloric acid da baƙin ƙarfe a cikin kwalbar 3000 ml tare da abin motsawa da motsa jiki, motsa su na mintina 15, sannan a hankali ƙara zafin jiki zuwa 90-98 ℃ kuma fara ƙara nitroxide. Idan nitroxide ya ɓace, to ci gaba da ƙara nitroxide, yawanci cikin awa 1.5-2. Bayan ƙara nitroxide, ci gaba da aiki a yanayin zafin da ke sama na awanni 2-2.5, har sai launin rawaya mai ɓacin rai ya ɓace kuma babu ƙanshin nitroxide, rage tasirin zai kai ƙarshen. Daga nan sai a huce zuwa 40-50 ℃, a kara sodium carbonate kuma a daidaita zuwa pH 7.5-8, sannan auna masu karantarwar a kan takardar tacewa da maganin alkali sulfide
A cikin 2000 ml na kwalabe uku a cikin ragowar abubuwan da ake sarrafawa, kafin a latsa kwalba mai laushi don janareto tururin ruwa, sannan mai madaidaitan bututun mai biye, mai daukar bayan wani mai dauke da daskarewa, a cikin rage kwalbar bakin ta uku, sanya wutar lantarki ta wutar lantarki, lokacin da mai ɗaukar distillate a cikakke, matsa zuwa cikin mazurari ruwa don a raba shi zuwa yadudduka, am-xylene amines sun fita, sannan a auna su don yin nazari.
Masana'antar Tianjin Wuyi, Cibiyar Nazarin Rini ta Tianjin. Takaitaccen gwajin gwaji amine 2,4-xylene. [J] Masana'antar Dyestuff, 1975, 2, 63. Tattara Cibiyar Cibiyar Shenyang Mai lamba 75067.
Dole ne a ce: Ba a fitar da Masanin Rini na Dye da ya gabata ba, don haka CA ba ta fitar da shi ba, kuma babu wani a cikin China da ya lissafa shi ya zuwa yanzu, don haka Cibiyar Ba da Bayanin Sinadarai ta China ba ta da labarin hakan!