### 镍负载硅酸铝催化剂上丙烯齐聚反应 3: 镍离子与丙烯分子的相互作用

1. 兰州大学化学系
• 发布日期:1993-03-15

### Studies of propylene oligomerization over Ni(II) supported on amorphous aluminasilicate catalyst pt. 3: interaction of nickel ions with propylene molecules

JIAN PANMING;YAN ZIFENG;WANG QIUYING;XU YANHE;ZHU CHAO;ZHAI YINGLI

• Published:1993-03-15

To ascertain the cause of the formation of the induction period during propylene (I) oligomerization and the nature of active centers on Ni ions supported on amorphous aluminosilicates, the interaction of Ni ions with I was investigated with ESR and XPS measurements in a closed recirculation apparatus The induction period was shortened by increasing the pre-evacuation temperature and the reaction them. Ni(II) was reduced to Ni(I) by I, and then the Ni(I) formed unsatd. complexes with I, these complexes being active intermediates in I oligomerization. It is the formation of these complexes that results in the elimination of the induction period.