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Vanadium-Modified Bimetallic Phillips Catalyst With High Branching Ability for Ethylene Polymerization

机译：钒改性的具有高支化能力的双金属菲利普斯乙烯聚合催化剂

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摘要

In order to improve the branching ability of Phillips catalyst for ethylene polymerization, a new bimetallic Phillips catalyst was developed. In this work, a series of vanadium-modified Phillips catalyst were prepared through co-impregnation by varying the pH of the impregnation solution, the vanadium loading and the vanadium precursors. A method to prepare bimetallic Phillips catalyst having good catalytic performance was proposed. Catalyst characterization by diffuse reflectance UV-Vis and X-ray photoelectron spectroscopies clarified the key role of specific interaction between chromium and vanadium components for the improvements in branching ability and catalyst activity.
机译：为了提高Phillips催化剂在乙烯聚合反应中的支化能力，开发了一种新型的双金属Phillips催化剂。在这项工作中，通过改变浸渍溶液的pH值，钒的负载量和钒的前体，通过共浸渍制备了一系列钒改性的Phillips催化剂。提出了一种具有良好催化性能的双金属菲利普斯催化剂的制备方法。通过漫反射UV-Vis和X射线光电子能谱表征催化剂，阐明了铬和钒组分之间特定相互作用对改善支化能力和催化剂活性的关键作用。

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  • 来源
    《Macromolecular reaction engineering》 |2012年第8期|p.346-350|共5页
  • 作者

    Akanksha Matta; Yanning Zeng; Toshiaki Taniike; Minoru Terano;

  • 作者单位

    School of Materials Science, Japan Advanced Institute of Science and Technology, i-i Asahidai, Nomi, Ishikawa 923-1292, Japan;

    School of Materials Science, Japan Advanced Institute of Science and Technology, i-i Asahidai, Nomi, Ishikawa 923-1292, Japan;

    School of Materials Science, Japan Advanced Institute of Science and Technology, i-i Asahidai, Nomi, Ishikawa 923-1292, Japan;

    School of Materials Science, Japan Advanced Institute of Science and Technology, i-i Asahidai, Nomi, Ishikawa 923-1292, Japan;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    bimetallic catalysts; branching; Phillips catalysts; polyethylene;

    机译：双金属催化剂;分枝;菲利普斯催化剂;聚乙烯;

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