HIGH ACTIVITY AND GOOD HYDROGEN RESPONSE SILICA-SUPPORTED ZIEGLER-NATTA CATALYST FOR ETHYLENE POLYMERIZATION

Tao Jiang; Li-na Zhao; Ming-jian Luo; Hong-xia Chen; Guo-liang Mao; Chen-gang Cao; Ying-nan Ning

doi:10.1007/s10118-012-1141-3

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HIGH ACTIVITY AND GOOD HYDROGEN RESPONSE SILICA-SUPPORTED ZIEGLER-NATTA CATALYST FOR ETHYLENE POLYMERIZATION

PAPER | Updated：2023-01-03

- HIGH ACTIVITY AND GOOD HYDROGEN RESPONSE SILICA-SUPPORTED ZIEGLER-NATTA CATALYST FOR ETHYLENE POLYMERIZATION
- Chinese Journal of Polymer Science Vol. 30, Issue 4, Pages: 561-567(2012)
- Affiliations：
  
  a.College of Material Science and Chemical Engineering, Tianjin University of Science & Technology, Tianjin 300457, China
  b.College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, China
- Author bio：
  
  **Tao Jiang (姜涛), E-mail: jiangtao@tust.edu.cn
- Funds：
- DOI：10.1007/s10118-012-1141-3
  CLC：
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Tao Jiang, Li-na Zhao, Ming-jian Luo, et al. HIGH ACTIVITY AND GOOD HYDROGEN RESPONSE SILICA-SUPPORTED ZIEGLER-NATTA CATALYST FOR ETHYLENE POLYMERIZATION. [J]. Chinese Journal of Polymer Science 30(4):561-567(2012)
DOI：

Tao Jiang, Li-na Zhao, Ming-jian Luo, et al. HIGH ACTIVITY AND GOOD HYDROGEN RESPONSE SILICA-SUPPORTED ZIEGLER-NATTA CATALYST FOR ETHYLENE POLYMERIZATION. [J]. Chinese Journal of Polymer Science 30(4):561-567(2012) DOI： 10.1007/s10118-012-1141-3.

摘要

Abstract

A silica-supported Ziegler-Natta catalyst with dimethyldichlorosilane (DMDS) as modifier and small silica as support was successfully prepared and characterized. Results from pilot screen showed that the new catalyst exhibited higher catalytic activity, better hydrogen response ability and better copolymerization ability than the commercial M catalyst. Pilot screen in ethylene gas phase fluidized bed polymerization, the catalytic activity of the new catalyst was up to 8000 g PE/g cat, which was twice of that of the commercial M catalyst. The bulk density of polyethylene obtained with the new catalyst was 0.38 g/cm,3,. The new catalyst is suitable for condensed and super-condensed process in fluidized bed ethylene polymerization.

关键词

Keywords

Ziegler-Natta catalystEthylene polymerizationSilicaDimethyldichlorosilane

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