Recent Progress on Research and Development of Silica Gel Support for Polyolefin Catalysts

Pei-hong YAO; Xu-teng HU; Bo-chao ZHU; Xiong WANG

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Recent Progress on Research and Development of Silica Gel Support for Polyolefin Catalysts

更新时间：2022-09-18

- Recent Progress on Research and Development of Silica Gel Support for Polyolefin Catalysts
- Polymer Bulletin Vol. 25, Issue 4, Pages: 17-24(2012)
- 作者机构：
  
  1.中国石油石油化工研究院兰州化工研究中心，兰州　730060；
  2.中国石油石油化工研究院，北京　100083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2012-04，
  
  Received：04 November 2011，
  
  Revised：29 November 2011，
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Pei-hong YAO, Xu-teng HU, Bo-chao ZHU, Xiong WANG. Recent Progress on Research and Development of Silica Gel Support for Polyolefin Catalysts. [J]. Polymer Bulletin 25(4):17-24(2012)
DOI：

Pei-hong YAO, Xu-teng HU, Bo-chao ZHU, Xiong WANG. Recent Progress on Research and Development of Silica Gel Support for Polyolefin Catalysts. [J]. Polymer Bulletin 25(4):17-24(2012) DOI：

摘要

以Ziegler-Natta催化剂和茂金属催化剂为例，介绍了聚烯烃均相催化剂的负载化技术以及载体选择的影响因素，明确了载体的强度、密度、总孔容、孔分布、孔径、粒度和颗粒形状等物理性质是选择载体要考虑的主要因素。综述了聚烯烃催化剂载体硅胶的结构特征和性能特征，并对聚烯烃催化剂载体硅胶的合成机理、影响因素进行了详细介绍。此类载体硅胶比表面积280~320m

/g、堆密度0.28~0.32g/cm

、孔容1.40~1.70cm

/g、平均孔径18~22nm。建议通过开展对不同性能硅胶（如更小粒径、不同元素改性等）的研究开发，以满足不同催化剂对载体硅胶的特殊要求。

Abstract

The immobolization technology and the selection of carrier of homogeneous Zeigler-Natta and metallocene catalysts were introduced. The major factors of carrier selection depend on strength

density

total pore volume

pore distribution

pore size

particle size and shape

and other physical properties of the carrier. The structure and performance characteristics of silica gel as polyolefin catalysts support were also reviewed

and the synthesis mechanism and influence factors in the process of silica gel preparation were introduced in details. The silica gel prepared have typical properties with specific surface area ranged from 280 m

/g to 320m

bulk density 0.28-0.32g/cm

porosity volume 1.40-1.70 cm

/g and average pore diameter 18-22 nm. Research on silica gel with different properties (such as smaller particle size and modified silica gel

etc.) for special requirements of catalysts was proposed.

关键词

均相催化剂的载体化硅胶茂金属催化剂改性

Keywords

Immobolization of homogeneous catalystSilica gelMetallocene catalystModification

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