C.I.分散黄11的工艺改进  

Improvement in the Synthesis of C.I. Disperse Yellow 11

作　　者：周增勇[1] 沈卫庆[1] 

机构地区：[1]杭州下沙恒升化工集团有限公司,杭州310018

出　　处：《染料与染色》2009年第4期15-16,14,共3页Dyestuffs and Coloration

摘　　要：1,8-萘酐在水溶液中通氯反应生成4-氯-1,8-萘酐。然后它在冰醋酸中与2,4-二甲基苯胺经亚胺化缩合,缩合产物在压力釜中氨解得到N-2′,4′-二甲基-4-氨基-1,8-萘酰亚胺,即C.I.分散黄11。改进后的产品的光物理性质和印染性能和原工艺一致。改进后的工艺明显降低了生产成本并且大大减少了对环境的污染,并且在氨解改进工艺中有意想不到的突破。4-Chloro-1, 8-naphthalic anhydride was synthesized by the reaction of 1, 8-naphthalic anhydride with chlorine in water. And it was condensed with 4-dimethylaniline in acetic acid. The ammonolysis of N-2＇, 4＇-dimethyl-phenyl-4-chloro-1, 8-naphthalimine was carried out under pressure. The product obtained possessed the same photo-physical and dyeing properties. This synthetic process lowered the cost of production and reduced environment pollution compared with the present synthetic process. And an unexpected breakthrough in the ammonolysis process was found.

关 键 词：1 8-萘酐 氨解 改进 

分 类 号：TQ613.24[化学工程—精细化工]