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[求助]
求助一段汉译英，3Q~
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| 本设计为年100吨8-羟基喹啉生产工艺。该生产工艺合成步骤如下:1)2-N一对甲苯磺酸胺基苯酚，三乙胺，甲醇混合后冷却，滴加丙烯醛，继续搅拌反应;再加入盐酸，升温搅拌反应，生成N-对甲苯磺酸基-8-羟基氢化喹啉中间体；2)在上述溶液中加入固体氢氧化钠，升温回流后冷却，用盐酸调节pH 值; 3)进行水蒸汽蒸馏，得到高纯度的8–羟基喹啉。本设计同现有的制备方法相比，具有操作简单，设备投资省，收率较高和生产成本较低等优点，适宜于工业化生产。以2-N-对甲苯磺酞胺基苯酚计，8-羟基哇琳的摩尔收率可达到理论量的85%以上。 |
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【答案】应助回帖
yuncheng(金币+30, 博学EPI+1): 3Q~ 2011-04-27 13:49:02
| This design is a production process for 100 tons of 8-hydroxyquinoline per year.The synthetic procedures of this production technology are as follows: 1) 2-N-P-toluene sulfonic acid amino phenol, triethylamine,carbinol are refrigerated after mixing together,acrolein drops added into the compound,then the reaction last with acrolein drops added in under the condition of agitation;N-p-toluene sulfol-8-hydroxy hydrogenation qunolin midbody is synthetized by adding hydrochloric acid and the warming reaction;2)Adding solid sodium hydroxide into the above solution, the pH is adjusted by hydrochloric acid afeter the procedure of temperature rise,backflow and cooling;3)The solution is steam distilled to achieve high purity of 8-hydroxy hydrogenation qunolin.compared with the existing preparation methods,This design possesses some advantages of simple operation, thrifty equipment investment, high yield and lower production cost, and is suitable for the industrial production.the Moore yield of 8-hydroxy qunolin can reach above 85% of the theory value,calculated with the base of 2-N-p-toluene phthalocyanine sulfonylureas amino phenol . |
2楼2011-04-24 22:21:42
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