| 乙烯聚合铝改性铬系催化剂研究进展 |
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| 引用本文： | 郭峰,王登飞,韩云光,姜进宪.乙烯聚合铝改性铬系催化剂研究进展[J].工业催化,2016,24(1):24-29. |
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| 作者姓名： | 郭峰 王登飞 韩云光 姜进宪 |
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| 作者单位： | 1.中国石油石油化工研究院大庆化工研究中心，黑龙江 大庆163714；2.东北石油大学化学化工学院，黑龙江 大庆 163318 |
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| 摘 要： | 综述国内外乙烯聚合铝改性铬系催化剂的研究现状、制备方法、性能以及对乙烯聚合性能的影响。铝改性铬系催化剂主要体现为采用氧化铝和磷酸铝作为载体,或使用烷基铝作为改性剂。改性后铬系催化剂的聚合活性和氢调敏感性明显提高,由其生成聚合物的相对分子质量分布变宽,耐环境应力开裂性能改善,加工性能优异。
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| 关 键 词： | 催化剂工程 铬系催化剂 乙烯聚合 铝改性 |
Advance in alumina modified chromium catalysts for ethylene polymerizatio |
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| Guo Feng,Wang Dengfei,Han Yunguang,Jiang Jinxian.Advance in alumina modified chromium catalysts for ethylene polymerizatio[J].Industrial Catalysis,2016,24(1):24-29. |
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| Authors: | Guo Feng Wang Dengfei Han Yunguang Jiang Jinxian |
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| Affiliation: | 1.Daqing Petrochemical Research Center of PetroChina Petrochemical Research Institute,Daqing 163714, Heilongjiang, China; 2.College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, Heilongjiang, China |
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| Abstract: | The research status,preparation methods,properties of aluminum modified chromium catalyst for ethylene polymerization at home and abroad were reviewed.Aluminum modified chromium catalyst was mainly used in two aspects:one was that using alumina or aluminum phosphate as the carrier,the other was that taking alkyl aluminum as the catalyst modifier.After modification,the polymerization activity and hydrogen sensitivity of chromium catalysts was improved significantly.The polymer obtained over the catalyst had broader molecular weight distribution,better environmental stress cracking resistance and excellent processing properties. |
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| Keywords: | catalyst engineering chromium catalyst ethylene polymerization aluminum modification |
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