[1]万亚珍,刘亚楠,陈迪.负载磷钨酸催化剂的制备及在BEA合成中的应用[J].郑州大学学报(工学版),2015,36(04):49-53.[doi:10.3969/j. issn.1671 -6833.2015.04.012]
　WAN Ya-zhen,LIU Ya-nan,CHEN Di.Preparation of Supported Phosphotungstic Acid Catalyst andlts Application in the Synthesis of BEA[J].Journal of Zhengzhou University (Engineering Science),2015,36(04):49-53.[doi:10.3969/j. issn.1671 -6833.2015.04.012]
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负载磷钨酸催化剂的制备及在BEA合成中的应用()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
36
期数:
2015年04期
页码:
49-53
栏目:
出版日期:
2015-08-31

文章信息/Info

Title:
Preparation of Supported Phosphotungstic Acid Catalyst andlts Application in the Synthesis of BEA
作者:
万亚珍; 刘亚楠; 陈迪
郑州大学化工与能源学院,河南郑州 450001
Author(s):
WAN Ya-zhen; LIU Ya-nan; CHEN Di
School of Chemical Engineering and Energy ,Zhengzhou University ,Zhengzhou 450001 , China
关键词:
催化剂; 磷钨酸; 二氧化硅; 2-( 4’-乙基苯甲酰基)苯甲酸
Keywords:
catalyst; phosphotungstic acid; silicon dioxide; 2-( 4’-ethylbenzoyl) -benzoic acid
DOI:
10.3969/j. issn.1671 -6833.2015.04.012
文献标志码:
A
摘要:
采用浸渍焙烧法制备负载磷钨酸(PTA)催化剂用于以苯酐和乙基苯为原料,氯苯为溶剂合成2-(4’-乙基苯甲酰基)苯甲酸(BEA)的反应中.实验结果表明,当PTA负载量为30%(质量分数),焙烧温度为300 ℃时,以SiO2为载体负载PTA后,其催化活性增加逾一倍.实验采用XRD对负载量的影响、NH3-TPD对焙烧温度的影响进行了分析,用FT - IR和 BET对PTA/SiO2催化剂进行了表征.考察了PTA/SiO2催化剂的重复使用性能,结果表明,PTA/SiO2在重复使用后仍保持了原有的催化活性.
Abstract:
PTA supported catalyst was prepared by dip roasting method for the synthesis of 2-(4’ -ethyl benzoyl) benzoic acid (BEA) from phthalic anhydride and ethyl benzene as raw materials and chlorobenzene as solvent.The experimental results showed that when the load of PTA was 30%(mass fraction) and the roasting temperature was 300℃, the catalytic activity of PTA was more than doubled with SiO2 as the carrier.The effects of XRD on loading capacity and NH3-TPD on calcination temperature were analyzed. Ft-ir and BET were used to characterize PTA/SiO2 catalysts.The reuse performance of PTA/SiO2 catalyst was investigated, and the results showed that the original catalytic activity of PTA/SiO2 was still maintained after repeated use.

参考文献/References:

[1]徐克勋.精细有机化工原料及中间体手册[M].北京:化学工业出版社,2004.

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