C.I.酸性黄23的合成工艺  

Synthesis Technology of C.I.Acid Yellow 23

作　　者：李信[1] 沈卫庆[1] 韩晓琴[1] 严一[1] 

机构地区：[1]杭州下沙恒升化工有限公司,杭州310018

出　　处：《染料与染色》2011年第1期5-6,共2页Dyestuffs and Coloration

摘　　要：本文介绍了用对氨基苯磺酸重氮盐与乙酰丁二酸二甲酯(DMAS)经偶合、脱羧、闭环、再偶合、水解制得C.I.酸性黄23的方法。染料纯度达99%,含量达到90%以上,溶解度可以达到200 g/L,各方面应用性能好;采用纳滤膜分离技术和喷雾干燥工艺,减少了"三废"排放。C.I.Acid Yellow 23 was synthesized from p-aminobenzenesulfonic diazo salt and acetylsuccinic acid dimethyl ester by coupling reaction,decarboxylation,cyclization,second coupling reaction and hydrolyzation.The dye purity was 99%,the content was above 90%,the solubility in water was 200 g/L and the application performances were good.＂The three wastes＂ were reduced by nanofiltration membrane separation technology and the spray drying.

关 键 词：C.I.酸性黄23 顺式重氮法 纳滤膜 喷雾干燥 

分 类 号：TQ613[化学工程—精细化工]