二氧化锰氧化法合成酸性翠蓝AE  

Synthesis of Acid Turquoise Blue AE by Oxidation with Manganese Dioxide

作　　者：潘国光 

机构地区：[1]浙江乐清市化工一厂,乐清325600

出　　处：《染料与染色》2003年第5期253-255,共3页Dyestuffs and Coloration

摘　　要：将N-乙基-N-苄基苯胺-3’-磺酸与苯甲醛邻磺酸钠缩合后,在磷酸的存在下用自制的新鲜二氧化锰作氧化剂进行氧化反应,然后在氨水的存在下,使Mn++以络合物的形式产生沉淀过滤除去Mn++,直接喷雾干燥得到酸性翠蓝AE(C.I.Acid Blue 9,42090),产品中锰的含量为15ppm^50ppm,系统地测定了染料的染色性能和色牢度。Acid Turquoise Blue AE (C.I. Acid Blue 9) was synthesized by the condensation of N-ethyl-N-benzylaniline-3'-sulfonic acid with sodium benzaldehyde-o-sulfonate. Oxidation was carried out using freshly prepared manganese dioxide as the oxidant in the presence of phosphoric acid, followed by precipitation of the Mn2+ complex in the presence of aqueous ammonia and by filtration to eliminate the Mn2+, then direct spray drying. The manganese content of the product was only 15ppm^50ppm, meeting food standards. Lastly, its dyeing properties and fastness were systematically determined.

关 键 词：C.I.酸性蓝9 N-乙基-N-苄基苯胺-3’-磺酸 苯甲醛邻磺酸钠 氧化反应 二氧化锰 

分 类 号：TQ615.1[化学工程—精细化工]