Preparation process of disperse dye

The invention discloses a preparation process of a disperse dye, which comprises the following steps: carrying out diazotization reaction on 2, 6-dichloro-p-nitroaniline and nitrosyl sulfuric acid in a sulfuric acid medium to obtain a diazo product solution; the obtained diazonium product solution and N-cyanoethyl-N-acetoxyethyl aniline are subjected to a coupling reaction, and disperse orange 30 is generated; the coupling reaction is carried out in a reaction kettle; vibration sources are fixedly arranged on the inner bottom wall and the inner peripheral wall of the reaction kettle respectively; in the coupling reaction process, reactants of the coupling reaction are fully mixed through vibration of the vibration sources on the inner bottom wall and the inner peripheral wall of the reaction kettle, and finally the product yield is increased. 本发明公开了一种分散染料的制备工艺，使2,6-二氯对硝基苯胺在硫酸介质中与亚硝酰硫酸进行重氮化反应获得重氮产物溶液；使所得重氮产物溶液与N-氰乙基-N-乙酰氧乙基苯胺发生偶合反应生成分散橙30；所述偶合反应在反应釜中进行；反应釜的内底壁和内周壁分别固设有振动源；在偶合反应过程中，通过反应釜内底壁和内周壁上振动源的振动，使偶合反应的反应物