物理化学学报 >> 1985, Vol. 1 >> Issue (01): 57-65.doi: 10.3866/PKU.WHXB19850108

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钛醚络合物对3TiCl3·AlCl3催化剂表面结构的影响

郭国霖; 谢有畅; 唐有祺   

  1. 北京大学物理化学研究所物质结构研究室
  • 收稿日期:1984-08-10 修回日期:1984-10-11 发布日期:1985-02-15

EFFECT OF TITANIAM ETHER COMPLEX ON THE SURFACE STRUCTURE OF THE 3TiCI3·AICI3 CATALYST

Guo Guolin; Xie Youchang; Tang Youqi   

  1. Laboratory for Structre of Matter; Institute of Physical Chemistry; Peking University
  • Received:1984-08-10 Revised:1984-10-11 Published:1985-02-15

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摘要：

本实验应用光电子能谱、红外光谱、核磁共振及溶剂剥离等方法证实了钛醚络合物可与3TiCl_3·AlCl_3催化剂发生固相反应:
TiCl_4·2Et_2O+2AlCl_3→TiCl_4+2AlCl_3·Et_2O
经钛醚络合物处理后的催化剂表面可用三层结构模型近似。
钛醚络合物以其给电子体和Lewis酸两种组份影响着催化剂的性能。给电子体组份仍可产生诱导迁移作用, 伴随固相反应还出现局域配位环境的变化, 产生新的表面缺陷, 这些皆有益于反应产物(四氯化钛)的键合负载。
最后对高效载体型催化剂的研制也提出了一些设想。

Abstract:

It has been Verified by XPS, IR, NMR and solvent washing that TiCl_4·2Et_2O complex is able to react with 3TiCl_3·AlCl_3 catalyst in solid phase as show in table (1—1), table (3—2) and Fig (2—1) — (2—4). The solid-solid reaction is as follows
TiCl_4·2Et_2O+2AlCl_3—→2AlCl_3·Et_2O+TiCl_4
After treatment with TiCl_4·2Et_2O complex the surface structure of the catalyst could be described approximately by a three layer model.
Properties of the catalyst are effected by the donor and acceptor components from whi...