| 5 | 1/1 | 返回列表 |
| 查看: 668 | 回復(fù): 2 | |||
| 本帖產(chǎn)生 1 個 翻譯EPI ,點(diǎn)擊這里進(jìn)行查看 | |||
| 當(dāng)前只顯示滿足指定條件的回帖,點(diǎn)擊這里查看本話題的所有回帖 | |||
Assisson金蟲 (初入文壇)
|
[求助]
請大神幫忙翻譯!
|
||
|
5-氯-2-氨基三氟甲苯工藝方案 1、側(cè)鏈氯化:甲苯在催化劑存在下,通入氯氣得三氯甲苯。 2、氟化:三氯甲苯在氟化氫和催化劑存在下,升溫反應(yīng)得三氟甲苯粗產(chǎn)品,常壓精餾得三氟甲苯。 3、環(huán)氯化:三氟甲苯在催化劑的存在下,通入氯氣得間氯三氟甲苯粗產(chǎn)品,減壓精餾得間氯三氟甲苯。 4、硝化:間氯三氟甲苯在硫酸與硝酸的存在下,常溫反應(yīng)得5-氯-2-硝基三氟甲苯粗產(chǎn)品,減壓精餾得成品。 5、還原:5-氯-2-硝基三氟甲苯在甲醇和催化劑的存在下,通入氫氣的粗產(chǎn)品,回收甲醇后,減壓精餾得產(chǎn)品。 |
木蟲 (正式寫手)
|
Technology program for 5-chloro-2-aminotrifluorotoluene 1. chlorizatoin of side-chain: trichlorotoluene is obtained through toluene reacting with chlorine in the presence of catalyst. 2. fluorization: trichlorotoluenen, in the presence of hydrogen fluoride and catalysts, was heated to obtain rude trifluorotoluene, which was distilled to trifluorotoluene under atomosphere. 3. ring chlorination: trifluorotoluene reacted with chlorine in the presence of catalysts to obtain crude meso-chlorotrifluorotoluene, which was distilled to meso-chlorotrifluorotoluene under reduced pressure. 4. nitration: meso-chlorotrifluorotoluene reacted in the presence of sulfuric acid and nitric acid under room temperature to get raw 5-chloro-2-nitrotrifluorotoluene, which was distilled to product under reduced pressure. 5. reduction: 5-chloro-2-nitrotrifluorotoluene reacted with hydrogen in the presence of methanol and catalysts to get raw product, which was distilled to product under reduced pressure after recycle of methanol. |
捐助貴賓 (著名寫手)
商家已經(jīng)主動聲明此回帖可能含有宣傳內(nèi)容|
5-氯-2-氨基三氟甲苯工藝方案 Technological Process for 2-Amino-5-chlorobenzotrifluoride 1、側(cè)鏈氯化:甲苯在催化劑存在下,通入氯氣得三氯甲苯。 1,side chain chlorination: With the presence of methylbenzene as catalyst, the trichlorotoluene can be obtained by ventilating chlorine gas 2、氟化:三氯甲苯在 氟化氫和催化劑存在下,升溫反應(yīng)得三氟甲苯粗產(chǎn)品,常壓精餾得三氟甲苯。 2, Fluorinatio: Under the effect of hydrogen fluoride and catalyst, trichlorotoluene can be reacted into crude trifluorotoluene by increasing reaction temperaturem and then become the refined trifluorotoluene through normal pressure rectification. 3、環(huán)氯化:三氟甲苯在 催化劑的存在下,通入氯氣 得 間氯三氟甲苯粗產(chǎn)品,減壓精餾 得間氯三氟甲苯。 3, Cyclizing chlorination: With the presence of catalyst, the trifluorotoluene can be firstly reacted into crude chlorobenzotrifluoride and then become the refined the product by vacuum distillation 4、硝化:間氯三氟甲苯 在硫酸與硝酸的存在下,常溫反應(yīng)得 5-氯-2-硝基三氟甲苯 粗產(chǎn)品,減壓精餾得成品。 4, nitration: With the presence of sulfuric acid and nitric acid, the chlorobenzotrifluoride will be first reacted into crude 5-chloro-2-nitrobenzotrifluoride under normal temperature, and then become the refined product through vacuum distillation. 5、還原:5-氯-2-硝基三氟甲苯 在 甲醇和催化劑的存在下,通入氫氣的粗產(chǎn)品,回收甲醇后,減壓精餾得產(chǎn)品。 5, Reduction reaction: With the presence of methyl alcohol and catalyst, by ventilating hydrogen, firstly the crude 5-chloro-2-nitrobenzotrifluoride can be prepared, then the refined product can be obtained by recycling the waste methyl alcohol within and vacuum distillation. |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 考研調(diào)劑 +3 | 呼呼?~+123456 2026-03-21 | 3/150 |
|
|---|---|---|---|---|
|
[考研] 求調(diào)劑 +5 | 十三加油 2026-03-21 | 5/250 |
|
|
[考研] 一志愿南大,0703化學(xué),分?jǐn)?shù)336,求調(diào)劑 +3 | 收到VS 2026-03-21 | 3/150 |
|
|
[考研] 求調(diào)劑 +3 | 13341 2026-03-20 | 3/150 |
|
|
[考研] 材料 271求調(diào)劑 +5 | 展信悅_ 2026-03-21 | 5/250 |
|
|
[考研] 一志愿西安交通大學(xué)材料工程專業(yè) 282分求調(diào)劑 +8 | 楓橋ZL 2026-03-18 | 10/500 |
|
|
[考研] 316求調(diào)劑 +6 | 梁茜雯 2026-03-19 | 6/300 |
|
|
[考研] 一志愿山大07化學(xué) 332分 四六級已過 本科山東雙非 求調(diào)劑! +3 | 不想理你 2026-03-16 | 3/150 |
|
|
[考研] 一志愿天津大學(xué)化學(xué)工藝專業(yè)(081702)315分求調(diào)劑 +12 | yangfz 2026-03-17 | 12/600 |
|
|
[考研] 304求調(diào)劑 +7 | 司空. 2026-03-18 | 7/350 |
|
|
[考研] 求調(diào)劑,一志愿:南京航空航天大學(xué)大學(xué) ,080500材料科學(xué)與工程學(xué)碩,總分289分 +4 | @taotao 2026-03-19 | 4/200 |
|
|
[考研] 289求調(diào)劑 +6 | 懷瑾握瑜l 2026-03-20 | 6/300 |
|
|
[考研] 298-一志愿中國農(nóng)業(yè)大學(xué)-求調(diào)劑 +9 | 手機(jī)用戶 2026-03-17 | 9/450 |
|
|
[考研]
|
不想起名字112 2026-03-19 | 3/150 |
|
|
[考研] 288求調(diào)劑,一志愿華南理工大學(xué)071005 +5 | ioodiiij 2026-03-17 | 5/250 |
|
|
[考研] 286求調(diào)劑 +6 | lemonzzn 2026-03-16 | 10/500 |
|
|
[考研] 一志愿福大288有機(jī)化學(xué),求調(diào)劑 +3 | 小木蟲200408204 2026-03-18 | 3/150 |
|
|
[考研]
|
胡辣湯放糖 2026-03-15 | 6/300 |
|
|
[考研] 一志愿南京大學(xué),080500材料科學(xué)與工程,調(diào)劑 +4 | Jy? 2026-03-16 | 4/200 |
|
|
[考研] 070303 總分349求調(diào)劑 +3 | LJY9966 2026-03-15 | 5/250 |
|