Synthesis and Catalytic Performance in Ethylene Oligomerization of Dual core Salicylaldimine Iron-based Catalyst

Jun WANG; Yi-teng SHANG; Na ZHANG; Cui-qin LI; Wei-guang SHI

doi:10.14028/j.cnki.1003-3726.2017.11.007

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Synthesis and Catalytic Performance in Ethylene Oligomerization of Dual core Salicylaldimine Iron-based Catalyst

更新时间：2022-09-06

- Synthesis and Catalytic Performance in Ethylene Oligomerization of Dual core Salicylaldimine Iron-based Catalyst
- Polymer Bulletin Vol. 30, Issue 11, Pages: 60-66(2017)
- 作者机构：
  
  东北石油大学化学化工学院石油与天然气化工省重点实验室，大庆 163318
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2017.11.007
  CLC：
- Published：01 November 2017，
  
  Received：23 February 2017，
  
  Revised：16 August 2017，
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Jun WANG, Yi-teng SHANG, Na ZHANG, Cui-qin LI, Wei-guang SHI. Synthesis and Catalytic Performance in Ethylene Oligomerization of Dual core Salicylaldimine Iron-based Catalyst. [J]. Polymer Bulletin 30(11):60-66(2017)
DOI：

Jun WANG, Yi-teng SHANG, Na ZHANG, Cui-qin LI, Wei-guang SHI. Synthesis and Catalytic Performance in Ethylene Oligomerization of Dual core Salicylaldimine Iron-based Catalyst. [J]. Polymer Bulletin 30(11):60-66(2017) DOI： 10.14028/j.cnki.1003-3726.2017.11.007.

摘要

以1.0代(1.0G)树枝状大分子、水杨醛和FeCl

•4H

O为原料，依次经过希夫碱反应和络合反应合成了一种双核水杨醛亚胺铁系催化剂。FT-IR、

H NMR、UV和MS证实合成产物的结构与理论结构相符。以甲基铝氧烷(MAO)为助催化剂，考察了溶剂种类、反应温度、反应压力、Al/Fe摩尔比及金属活性中心种类对催化体系催化乙烯齐聚性能的影响。结果表明，当以甲苯为溶剂，聚合时间为30min，反应温度为15℃、反应压力为0. 5MPa、Al/Fe摩尔比为1000时，该双核水杨醛亚胺铁系催化剂的活性可达1. 14 × 10

g/(mol F•h)，齐聚产物中C

及C

烯烃含量高达90%以上。

Abstract

A dual core salicylaldimine iron catalyst was synthesized by Schiff reaction and complex reaction with 1. OG dendric macromolecule

salicylaldehyde and iron chloride tetrahydrate as materials. The structure of the target product was characterized by FT-IR

1 H NMR

UV and MS. The influences of the kind of solvent

reaction temperature

reaction pressure

Al/Fe molar ratio and the types of metal active center on catalytic performance of ethylene oligomerization were researched with MAO as co-catalyst. The results showed that the catalytic activity of 1. 14 × 10

g/(mol Fe• h) and 90% selectivity of C

and C

olefins were obtained under the conditions that the toluene was used as solvent

the reaction time was 30min

the reaction temperature was 15 ℃

the reaction pressure was 0. 5MPa

and the Al/Fe molar ratio was 1000.

关键词

树枝状大分子铁系催化剂乙烯齐聚催化活性

Keywords

Dendritic macromoleculeIron catalystEthylene oligomerizationCatalytic activity

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