3-甲基-4-氨基-N-乙基-N-(2-羟基乙基)-苯胺合成工艺  

Synthesis of 3-Methyl-4-Amino-N-Ethyl-N-(2-Hydroxyethyl)-Aniline

作　　者：陈思宇[1] 高志成 史美慧 刘红翼[1] 王雪梅[1] 单体育 CHEN Siyü;GAO Zhicheng;SHI Meihui;LIU Hongyi;WANG Xuemei;SHAN Tiyü(Shenyang Research Institute of Chemical Industry Co.,Ltd.,Shenyang 110021,Liaoning China)

机构地区：[1]沈阳化工研究院有限公司,沈阳110021

出　　处：《染料与染色》2024年第3期20-22,61,共4页Dyestuffs and Coloration

摘　　要：本文合成了3-甲基-4氨基-N-乙基-N-(2-羟基乙基)-苯胺硫酸盐(CD-4)显影剂,并对其合成工艺进行了研究。结果表明,Pt/C作为催化剂、甲醇作为加氢溶剂、温度60℃、压力0.8~1.5 MPa为最佳工艺条件。在该条件下,加氢转化率达100%。硫酸中和度105%时,粗品收率为76%。使用活性炭1%用量,水(33%)/乙醇(67%)作为重结晶溶剂进行产品精制可制得合格的目标产品。A developing agent,3-Methyl-4-amino-N-ethyl-N-(2-hydroxyethyl)-aniline sulfate(CD-4),was synthesized;its synthesis process was studied.The results showed that the optimum process conditions were Pt/C as catalyst,methanol as solvent,temperature 60℃,pressure 0.8~1.5 MPa.In the conditions,the conversion rate of hydrogenation was 100%.When the neutralization degree of sulfuric acid was 105%,the yield of crude product was 76%.Using 1% of activated carbon,water(33%)/ethanol(67%)as recrystallization solvent to refine the product,the target product with qualified color could be prepared.

关 键 词：显影剂 CD-4 催化加氢 工艺 

分 类 号：TQ618.97[化学工程—精细化工]