ʻIke ʻia hoʻi ʻo dimethylaniline, ʻaʻohe kala a i ʻole ka wai ʻaila melemele māmā, ʻala hoʻonāukiuki, i ka lewa a i ʻole ma lalo o ka lā e maʻalahi ai ka hoʻohana ʻana iā Ze e lilo i hohonu. ʻO ka nui pili (20 ℃ / 4 ℃) 0.9555, kiko hau 2.0 ℃, kiko paila 193 ℃, kiko flash (wehe) 77 ℃, kiko hoʻā ahi 317 ℃, viscosity (25 ℃) 1.528 MPa · s, index refractive (N20D) 1.5584. Hoʻoheheʻe ʻia i loko o ka ethanol, ether, chloroform, benzene a me nā mea hoʻoheheʻe organik ʻē aʻe. Hiki ke hoʻoheheʻe i nā ʻano hui organik. Hoʻoheheʻe iki ʻia i ka wai. Hiki ke lapalapa, e puhi i ke ahi ākea, ka mahu a me ka ea e hana i kahi hui pahū, ka palena pahū o 1.2% ~ 7.0% (vol). ʻO ka ʻawaʻawa kiʻekiʻe, ka decomposition thermal kiʻekiʻe o ka hoʻokuʻu ʻana o ke kinoea aniline ʻawaʻawa. Hiki ke komo ma o ka ʻili a me ka ʻawaʻawa, LD501410mg / kg, ʻo ka nui o ka ʻae ʻia i ka lewa he 5mg / m3.

Nā ʻano mālama

1. Nā Memo Mālama [25] E mālama i loko o kahi hale kūʻai anuanu a me ka ea. E mālama ʻia mai ke ahi a me ka wela. E hoʻopaʻa pono i ka ipu. Pono e mālama ʻia ma kahi kaʻawale mai nā waikawa, nā halogens a me nā kemika meaʻai, a ʻaʻole pono e hui pū ʻia. E hoʻolako me nā ʻano like ʻole a me ka nui o nā lako hana kinai ahi. Pono e hoʻolako ʻia kahi mālama me nā lako hana ulia pōpilikia leakage a me nā mea mālama kūpono.

2. Sila ʻia i loko o ka pahu hao, 180kg no ka barela. E mālama i kahi anuanu a me ka ea. E mālama a lawe e like me nā lula o nā mea lapalapa a me nā mea ʻawahia

Nā ʻano hana synthetic

1. Ma o ka aniline a me ka methanol i ke alo o ka waikawa sulfuric, ma o ka hopena wela kiʻekiʻe a me ke kaomi kiʻekiʻe. Kahe o ke kaʻina hana: 1. E hoʻohui i 790kg o ka aniline, 625kg o ka methanol a me 85kg o ka waikawa sulfuric (100% o ka ammonium) i ka reactor, e kāohi i ka mahana 210-215 ℃ a me ke kaomi 3.1MPa, e pane no 4h, a laila e hoʻokuʻu i ke kaomi, e hoʻokuʻu i ka mea i ka separator, e hoʻopau me 30% sodium hydroxide, e kū, a hoʻokaʻawale i ka paʻakai ammonium quaternary haʻahaʻa. A laila ka hopena hydrolysis ma 160 ℃, 0.7-0.9MPa no 3h, ua hui pū ʻia ka hydrolysate hopena a me ka ʻaila o luna me ka holoi wai a me ka distillation vacuum e loaʻa ai ka huahana i hoʻopau ʻia.

2, me ka methanol a me ka aniline ma ke ʻano he mea maka, ma lalo o ke kūlana o ka methanol nui, kaomi lewa, 200-250 ℃, ma o ka synthesis catalyst alumina. Ka nui o ka hoʻohana ʻana i nā mea maka: aniline 790kg/t, methanol 625kg/t, sulfuric acid 85kg/t. Hiki i ka hoʻomākaukau ʻana o ka hale hana ke hana i ka aniline me ka trimethyl phosphate.

3. Hoʻohui ʻia ka aniline a me ka methanol (N aniline: N methanol ≈ 1:3) a hoʻokomo ʻia i loko o ka reactor i lako me ka catalyst ma ka wikiwiki o ka hakahaka o 0.5h-1 ma o kahi pamu ana pulse reciprocating non-pulse. Komo mua ka effluent reaction i ka mea hoʻokaʻawale kinoea-wai aniani, a lawe mau ʻia ka wai i hōʻiliʻili ʻia ma ka ʻaoʻao haʻahaʻa o ka mea hoʻokaʻawale no ka nānā ʻana i ka chromatographic.

4. I ka makahiki 2001, ua hui pū ʻo Nankai University a me Tianjin Ruikai Science and Technology Development Co., Ltd i kahi mea hoʻouluulu methylation aniline kūpono loa e hoʻokō i ka synthesis pae kinoea o N, N-dimethylaniline. Penei ke kaʻina hana: Ma hope o ka hui ʻana o ka aniline wai me ka methanol ma ka like ʻana, ua hoʻoheheʻe ʻia i loko o kahi hale kiaʻi vaporization a laila hoʻokomo ʻia i loko o kahi reactor tubular me ka wikiwiki o ka hakahaka o 0.5-1.0h-1 (ua lako ka moena paʻa o ka reactor tubular me kahi mea hoʻouluulu paʻa nanometer i kākoʻo ʻia) no ka hana mau ʻana ma 250-300 ℃ a me ke kaomi lewa. ʻOi aku ka hua o DMA ma mua o 96%.

ʻAno hoʻomaʻemaʻe: pinepine ka aniline, N-methyl aniline a me nā mea haumia ʻē aʻe. I ka wā o ka hoʻomaʻemaʻe ʻana, hoʻoheheʻe ʻia ʻo N, N-dimethylaniline i loko o 40% sulfuric acid a hoʻokō ʻia ka distillation mahu. Hoʻohui ʻia ka sodium hydroxide e hana i mea kumu. Hoʻomau ka distillation mahu. Hoʻokaʻawale ʻia ka distillate i loko o kahi papa wai a hoʻomaloʻo ʻia me ka potassium hydroxide. Distillation ma ke kaomi lewa i ke alo o ka acetic anhydride. Ua holoi ʻia ka distillate me ka wai e wehe i nā nui liʻiliʻi o ka acetic anhydride, a laila hoʻomaloʻo ʻia me ka potassium hydroxide, a ukali ʻia e ka barium oxide a me ka distillation decompressed i loko o kahi kahawai nitrogen. ʻO nā ʻano hoʻomaʻemaʻe ʻē aʻe e hoʻohui i ka 10% acetic anhydride a reflux no kekahi mau hola e wehe i nā amines mua a me nā lua. Ma hope o ka hoʻomaʻalili ʻana, e hoʻohui i ka 20% hydrochloric acid keu a unuhi me ka ether. Ua hana ʻia ka papa hydrochloric acid alkaline ma ka hoʻohui ʻana i ka alkali, a laila unuhi ʻia me ka ether. Ua hoʻomaloʻo ʻia ka papa ether me ka potassium hydroxide a laila distilled ma lalo o ke kaomi ma lalo o ka nitrogen. Hiki ke hoʻololi ʻia ʻo N, N-dimethylaniline i picronate, e hoʻoheheʻe hou ʻia i kahi kiko heheʻe mau me kahi hopena wai sodium hydroxide 10% mahana e hoʻoheheʻe i ka picronate. E unuhi me ka ether, holoi me ka wai a hoʻomaloʻo ma hope o ka distillation vacuum.

5. Hoʻohui ʻia ʻo Aniline, methanol a me ka waikawa sulfuric ma ka like a hoʻopaʻa ʻia i loko o ka autoclave. Ma hope o ka hoʻihoʻi ʻia ʻana o ka huahana hopena ma o ka hoʻomaha ʻana o ke kaomi, hoʻohui ʻia ka alkali no ka neutralization, ka hoʻokaʻawale ʻana, a laila loaʻa ka huahana ma o ka distillation vacuum.

6. Hiki i ka hopena methylation o ka aniline a me ka trimethyl phosphate ke hana iā N, N-dimethylaniline: a laila unuhi ʻia me ka ether, distillation maloʻo.

7. Hiki ke hoʻohui ʻia ʻo N, N-dimethylaniline ma ka hoʻohui ʻana i kahi hui ʻana o ka aniline a me ka methanol ma ka lakio o 1: 3.5 i loko o kahi moena catalytic o Cu-Mn a i ʻole Cu-Zn-Cr Ziegler catalyst ma 280 ℃. ʻO ka hopena o N, N-dimethylaniline ua hōʻiliʻili ʻia i loko o ka ʻāpana distillation o 54 mau papa ma ka laulā o 193 a 195 ℃ a hoʻopaʻa ʻia i loko o nā ʻōmole aniani ʻeleʻele. No ka hoʻomākaukau ʻana i ka chromatography maʻemaʻe N, N-dimethylaniline, hiki i ka nitrogen ke lilo i ke kinoea lawe, i ka hoʻomākaukau ʻana i ka chromatography kinoea me ke kolamu Ben 犅 yaku i hoʻokomo ʻia i ka hoʻoponopono ʻana o N, N-dimethylaniline, ma o ka hoʻokaʻawale ʻana a me ka hōʻiliʻili ʻana o ka ʻāpana nui o ka piko, a laila hiki ke hoʻokomo ʻia ke sila ampoule i loko o ke aniani.

ʻO ke kumu nui

1. ʻO kekahi o nā mea maka kumu no ka hana ʻana i nā dyes kumu paʻakai (triphenyl methane dyes, etc.) a me nā dyes kumu, ʻo nā ʻano nui he melemele ʻālohilohi alkaline, poni alkaline 5GN, ʻōmaʻomaʻo alkaline, uliuli alkaline lake, ʻulaʻula ʻālohilohi 5GN, uliuli ʻālohilohi, etc. N, N-dimethylaniline i ka ʻoihana lāʻau lapaʻau no ka hana ʻana o cephalosporin V, sulfamilamide B-methoxymidine, sulfamilamide dimethoxymidine, fluorouracil, etc., i ka ʻoihana ʻala no ka hana ʻana o vanillin, etc. 2. Hoʻohana ʻia ma ke ʻano he solvent, mea mālama metala, mea hoʻōla o ka epoxy resin, mea hoʻolalelale hoʻōla o ka polyester resin, mea hoʻoulu no ka polymerization o nā hui ethylene, etc. Hoʻohana ʻia hoʻi i ka hoʻomākaukau ʻana o nā dyes triphenyl methane kumu, nā dyes azo a me vanillin. 3. Hoʻohana ʻia kēia huahana ma ke ʻano he mea hoʻoulu no ka hana ʻana i nā plastics foam polyurethane me nā hui tin organik. Hoʻohana pū ʻia ma ke ʻano he mea hoʻolalelale vulcanization rubber, nā mea pahū, nā mea maka lāʻau lapaʻau. ʻO ia kekahi o nā mea maka kumu no ka hana ʻana i nā dyes kumu (triphenyl methane dyes, etc.) a me nā dyes kumu. ʻO nā ʻano nui he melemele ʻālohilohi kumu, poni kumu BN, ʻōmaʻomaʻo kumu, uliuli loko kumu, ʻulaʻula ʻālohilohi 5GN, uliuli ʻālohilohi, etc. N, N-dimethylaniline i ka ʻoihana lāʻau lapaʻau no ka hana ʻana o cephalosporin V, sulfamilamide N-methoxymidine, sulfamilamide - dimethoxymidine, fluorouracil, etc., i ka ʻoihana ʻala no ka hana ʻana o vanillin, etc. 4. Hoʻohana ʻia ma ke ʻano he mea hoʻolalelale hoʻōla o ka epoxy resin, polyester resin a me ka anaerobic adhesive, i hiki ke hoʻōla koke ʻia ka anaerobic adhesive. Hiki ke hoʻohana ʻia ma ke ʻano he solvent, he mea hoʻoulu no ka polymerization o nā hui ethylene, kahi mea mālama metala, kahi mea hoʻomoʻa ultraviolet no nā mea hoʻonani, kahi mea hoʻomaopopo māmā, etc. Hoʻohana pū ʻia i ka hana ʻana i nā dyes kumu, nā dyes disperse, nā dyes acid, nā dyes soluble aila a me nā mea ʻala (vanillin) a me nā mea maka ʻē aʻe. 5. Reagent i hoʻohana ʻia no ka hoʻoholo photometric o ka nitrite. Hoʻohana ʻia hoʻi ia ma ke ʻano he mea hoʻoheheʻe a ma ke ʻano hana organik. 6. Hoʻohana ʻia ma ke ʻano he mea waena o ka dye, mea hoʻoheheʻe, mea hoʻopaʻa, mea hoʻohuihui analytical.