旋转填料床与导流板式塔组合反应器制备对羟基苯甲醛  

Preparation of p-Hydroxybenzaldehyde by Combination Reactor of Rotating Packed Bed and Guide Tray Tower

作　　者：张巧玲[1] 李光明[1] 刘有智[1] 

机构地区：[1]中北大学化工与环境学院山西省超重力化工工程技术研究中心,太原030051

出　　处：《化学通报》2009年第10期937-941,共5页Chemistry

摘　　要：采用旋转填料床与导流板式塔组合反应器研究了对氨基苯甲醛重氮盐的水解反应,考察了水解温度、转子转速、停留时间等参数对主产物对羟基苯甲醛收率的影响。与传统釜式水解法相比,本法将反应时间由2～3.5h缩短为3～5min,主产物收率由55%提高至82%,显著提高了生产效率,强化了生产过程。A new type reactor, combined by rotating packed bed and guide tray tower, was used to hydrolysis reaction of diazonium salt of p-aminobenzaldehyde. The effects of the operating parameters, such as hydrolysis reaction temperature, rotational speed and flow rate etc on the yield of p-hydroxybenzaldehyde （PHB） were discussed. Compared with traditional kettle-type reactor, by using new reactor, the reaction time can be shortened from 2.0 - 3.5h to 3 - 5min and the yield of PHB improved from 55% to 82% . Production efficiency has been increased significantly and process strengthened greatly.

关 键 词：旋转填料床 导流板式塔 重氮盐 对羟基苯甲醛 

分 类 号：TQ244.1[化学工程—有机化工] X505[环境科学与工程—环境工程]