CAJ | 학술논문

介绍了一种对愈创木酚和乙醛酸缩合反应产物3-甲氧基-4-羟基-扁桃酸（下称扁桃酸）水溶液进行高效氧化的方法。将溶解有扁桃酸的水溶液pH 调至12．0～14．5，然后按扁桃酸和氧化铜摩尔比1．00∶1．15混合后加入自吸式反应釜中，搅拌加热到80℃以上，开始通入氧气进行氧化反应，反应时温度控制在80～120℃，至反应体系不再消耗氧气时为反应终点。反应液再经过固液分离、脱羧反应得到香兰素。反应工艺得到了简化，减少了反应时间，保证氧化反应在2h 之内完成的同时，可以降低废水中TOC（总有机碳）含量35％以上，还能大大降低反应设备的体积从而减少设备投资。
개소료일충대유창목분화을철산축합반응산물3-갑양기-4-간기-편도산（하칭편도산）수용액진행고효양화적방법。장용해유편도산적수용액pH 조지12．0～14．5，연후안편도산화양화동마이비1．00∶1．15혼합후가입자흡식반응부중，교반가열도80℃이상，개시통입양기진행양화반응，반응시온도공제재80～120℃，지반응체계불재소모양기시위반응종점。반응액재경과고액분리、탈최반응득도향란소。반응공예득도료간화，감소료반응시간，보증양화반응재2h 지내완성적동시，가이강저폐수중TOC（총유궤탄）함량35％이상，환능대대강저반응설비적체적종이감소설비투자。
A high efficient oxidation method of mandelic acid solution (main component was 3-methoxy-4-hydroxy mandelic acid)resulting from condensation of guaiacol and glyoxylic acid was introduced in this paper. First,the pH of this aqueous so-lution was adjusted to 12.0- 14.5,then it was mixed with copper oxide in molar ratio of 1.00 to 1.15 and added to a self-prim-ing reactor,heated to over 80 ℃ under stirring,oxygen was introduced to conduct the oxidation reaction,the reaction tempera-ture was controlled at 80- 120 ℃ ,the end point of reaction was reached when no oxygen was consumed. After solid-liquid sep-aration and decarboxylation of the reaction solution,the vanillin was obtained. The method could simply the process,reduce the reaction time,ensured the completion of reaction within 2 h,also it reduced the content of TOC in waste water by more than 35% ,and greatly reduced the volume of the reaction equipment to decrease equipment investment finally.