简介概要

Pd/Al2O3 催化合成2,3,5-三甲基氢醌的连续工艺

来源期刊:中南大学学报(自然科学版)1998年第5期

论文作者:钱东 王开毅 杨礼义 张茂昆

文章页码:97 - 99

关键词:2,3,5-三甲基氢醌;Pd/Al2O3 催化剂;固定床连续工艺;加氢合成

Key words:2,3,5-trimethylhydroquinone; Pd/Al2O3 catalyst; fixed-bed continuous process; hydrogenation synthesis

摘    要:利用Pd/AL2O3催化剂,采用固定床的连续工艺将2,3,5-三甲基苯醌催化加氢得到高纯度的2,3,5-三甲基氢醌.考察了溶剂对加氢反应的影响,并通过实验确定了加氢工艺条件:2,3,5-三甲基苯醌的空速为0.27g(gH)-1,氢分压为0.1MPa,加氢反应温度为50℃.同时将Pd/AL2O3与Pt/Al2O3的催化性能进行了比较,发现Pd/Al2O3催化剂在使用过程中选择性上升.

Abstract: Trimethylhydroquinone with high quality was synthesized by catalytic hydrogenation of 2,3,5-trimethylbenzoquinone over Pd/Al2O3 catalyst by a fixed bed continuous process.The effects of solvents on the hydrogenation reaction were investigated,and the hydrogenation conditions were found by some conditional reations:the space velocity was 0 27 g·(g·h)-1 based on 2,3,5-trimethylbenzoquinone,the hydrogen partial pressure was 0.1 MPa and the hydrogenation temperature was 50 ℃.Meanwhile,the catalytic properties of Pd/Al2O3 were compared with Pt/Al2O3 and it was found that the selectivity of Pd/Al2O3 rose during continuous use.

详情信息展示

 

<上一页 1 下一页 >

相关论文

  • 暂无!

相关知识点

  • 暂无!

有色金属在线官网  |   会议  |   在线投稿  |   购买纸书  |   科技图书馆

中南大学出版社 技术支持 版权声明   电话:0731-88830515 88830516   传真:0731-88710482   Email:administrator@cnnmol.com

互联网出版许可证:(署)网出证(京)字第342号   京ICP备17050991号-6      京公网安备11010802042557号