应用化学 ›› 1989, Vol. 0 ›› Issue (2): 52-55.

• 研究简报 • 上一篇    下一篇

高分子负载加氢催化剂中钯流失的研究—Ⅰ.高分子载体的影响

何炳林, 王俐   

  1. 南开大学高分子化学研究所 天津
  • 收稿日期:1988-05-17 修回日期:1988-08-20 出版日期:1989-04-10 发布日期:1989-04-10

STUDY ON PALLADIUM LOSS FROM POLYMER-BOUNDED HYDROGENATION CATALYSTS Ⅰ.The Influence of Polymer Support

He Binglin, Wang Li   

  1. Institute of Polymer Chemistry, Nankai University, Tianjin
  • Received:1988-05-17 Revised:1988-08-20 Published:1989-04-10 Online:1989-04-10

摘要: 高分子催化剂由于同时具有多相催化剂和均相催化剂的优点,已引起了广泛的重视.然而表面活性组份贵金属的流失直接影响了此类高活性催化剂的推广应用.作者合成了不同载体的几类负载钯催化剂,探讨其在1,5,9-环十二碳三烯的选择加氢反应过程中钯的流失规律.

关键词: 高分子负载催化剂, 钯, 加氢反应

Abstract: The Pd loss from the polymer-bounded palladium catalyst in the selective hydrogena-tion of 1,5,9-cyclododecatriene at 100℃ and 1.96 MPa hydrogen pressure has been studied.Theeffects of polymer supports on the Stability of catalysts were discussed. Pd dissolution wasfound to be decreased with decrease of pore radius of support. For the same polymer support,the stability of Pd was dependent on the atom i.e.O≥N>P>C. An electron-donor groupwhich linked with the ligand atom improved the stability of the catalyst. The more activeand stable catalyst can be obtained when a five-member ring between Pd and the chelateligand is formed.

Key words: Polymer-supported catalyst, Palladium, Hydrogenation