详细信息
文献类型:期刊文献
中文题名:对甲基苯甲酸液相催化氧化
英文题名:Study on Liquid Phase Oxidation of p-Toluic Acid
作者:张炳琦[1];张震[1];肖文德[1];朱开宏[1]
机构:[1]华东理工大学联合化学反应工程研究所,上海200237
年份:2002
卷号:31
期号:6
起止页码:436
中文期刊名:石油化工
外文期刊名:Petrochemical Technology
收录:CSTPCD;;EI(收录号:2002447167837);Scopus;北大核心:【北大核心2000】;CSCD:【CSCD2011_2012】;
语种:中文
中文关键词:甲基苯甲酸;液相催化氧化;对羧基苯甲醛;对苯二甲酸
外文关键词:p -toluic acid;p-carboxybenzaldehyde; terephthalic acid
摘要:研究了以醋酸钴、醋酸锰和四溴乙烷为催化剂 ,在 190℃时 ,对甲基苯甲酸液相氧化制对苯二甲酸的过程。采用高效液相色谱法分析产物中对甲基苯甲酸、对羧基苯甲醛、对苯二甲酸 3种物质的组成 ,从而确定催化剂的配比和浓度、溶剂比、温度对液相氧化反应的影响 ;测定对苯二甲酸中对羧基苯甲醛 (4 -CBA)含量和TA选择性及燃烧副反应生成CO2 的量与各种操作参数之间的关系 ,得到了充分降低 4-CBA含量的最佳催化剂浓度和最佳溶剂比 ,并建立了动力学方程。
The liquid phase oxidation of p -toluic acid at 190 ℃ in the presence of manganese acetate,cobalt actate and tetrabromoethane was studied. An analysis method based on high-performance liquid chromatography (HPLC) was developed for the determination of the products including terephthalic acid,p-carboxybenzadehyde and p -toluic acid. The influences of catalyst concentration,ratio of solvent to p -toluic,and reaction temperature on the liquid phase oxidation were discussed. The optimum solvent ratio and catalyst concentration were obtained,and the kinetic equations were proposed.
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