喹吖啶酮中间体DTTA的制备  

Synthesis of Quinacridone Intermediate DTTA

作　　者：张金月 韩红霞 王朝聘 刘洪涛 杨钲 ZHANG Jin-yue;HAN Hong-xia;WANG Chao-pin;LIU Hong-tao;YANG Zheng(Hebei Tsaker New Material Technology Co.,Ltd.,Cangzhou 061600,China;Engineering Technology Research Center of Dye and Pigment Intermediates of Hebei Province,Cangzhou 061600,China;Identif ied Enterprise Technology Center of Hebei Province,Cangzhou 061600,China)

机构地区：[1]河北彩客新材料科技股份有限公司,河北沧州061600 [2]河北省染料与颜料中间体工程技术研究中心,河北沧州061600 [3]河北省认定企业技术中心,河北沧州061600

出　　处：《化工管理》2022年第34期159-161,共3页Chemical Engineering Management

摘　　要：文章探究了在高压釜内利用氧气氧化,制备喹吖啶酮的重要中间体2,5-二[(4-甲基苯基)氨基]-1,4-苯二甲酸(2,5-di-p-toluidinoterephthalic acid,DTTA)的一种新工艺,该工艺具有巨大的经济和生态效益。得到最佳反应条件为:在1 L高压釜内加入45.6 g DMSS、45 g对甲苯胺、300 mL甲醇作溶剂,3 g醋酸做催化剂进行缩合反应。氧化水解阶段加入32 g氢氧化钠和1.3 g的催化剂2,7-蒽醌二磺酸钠,设定初始温度为75℃,使用氧气氧化。The present invention relates to an ecologically and economically improved process for the preparation of quinacridone intermediate 2,5-di-p-toluidinoterephthalic acid which can be made by oxygen-oxidation process in autoclave.The optimal reaction conditions are obtained as:into 1 L autoclave put 45.6 g DMSS,45 g p-toluidine,300 mL methol as solvent and 3 g acetic acid glacial as catalyst to undergo a condensation reaction.Then at oxidative hydrolysis stage put 32 g sodium hydroxide solution,1.3 g anthraquinone-2,7-disulfonic acid sodium salt as catalyst into the clave.Set the initial temperature to 75℃,made by oxygen-oxidation.

关 键 词：高压釜 空气氧化 DTTA 喹吖啶酮中间体 

分 类 号：TQ61[化学工程—精细化工]