Journal of Petrochemical Universities

Journal of Petrochemical Universities ›› 2009, Vol. 22 ›› Issue (3): 21-23.DOI: 10.3696/j.issn.1006-396X.2009.03.006

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Oxybromination of Phenol Over Phosp horus Molybdenum Tungsten Heteropoly Acid Catalyst Supported on Activated Carbon

  

  1. Department of Chemistry, Liaocheng University, Liaocheng Shandong 252059,P.R. China
  • Received:2008-09-05 Revised:2009-03-08 Published:2009-09-25 Online:2009-09-25

活性炭负载P - Mo - W 杂多酸催化苯酚氧化溴化反应

龚树文, 刘丽君, 李考真, 崔庆新   

  1. 聊城大学化学化工学院,山东聊城252059
  • 作者简介:龚树文(1976 -), 男, 山东蒙阴县, 副教授, 博士
  • 基金资助:
    国家自然科学基金(20771053)

Abstract: Activated carbon supported phosphorus molybdenum tungsten heteropoly acid as oxybromination reaction catalyst was prepared via immersion method. Catalyst properties were investigated by X - ray diff raction (XRD) and IR methods. And
the oxybromination reaction activity of catalyst was studied with potassium bromide as bromine source and hydrogen peroxide as oxidizer. The result s indicate that the Keggin st ructure is still retaining af ter supported, and the catalyst exhibit s high oxybromination reaction activity and high selectivity of para product . Supported heteropoly acid slightly lost af ter reaction, but the whole physical phase of catalyst has no significant changes.

Key words: Supported , Heteropoly acid , Oxybromination , Phenol

摘要: 以活性炭为载体,采用浸渍法制备了负载磷钼钨杂多酸催化剂,利用XRD 和IR 对催化剂进行了表
征,并以溴化钾为溴源,双氧水为氧化剂,评价了催化剂的苯酚氧化溴化反应催化活性。结果表明,活性炭负载后,催化剂仍保持了磷钼钨杂多酸的Keggin 结构;催化剂具有较强的苯酚氧化溴化催化活性和对位溴代反应选择性;反应后负载杂多酸有所损失,但催化剂整体物相没有发生明显变化。

关键词: 负载 , 杂多酸 , 氧化溴化 , 苯酚

Cite this article

GONG Shu-wen, LIU Li-jun, LI Kao-zhen, CUI Qin-xin. Oxybromination of Phenol Over Phosp horus Molybdenum Tungsten Heteropoly Acid Catalyst Supported on Activated Carbon[J]. Journal of Petrochemical Universities, 2009, 22(3): 21-23.

龚树文, 刘丽君, 李考真, 崔庆新. 活性炭负载P - Mo - W 杂多酸催化苯酚氧化溴化反应[J]. 石油化工高等学校学报, 2009, 22(3): 21-23.