• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

1987 Fiscal Year Final Research Report Summary

Embedding of Fine Particle Catalyst into Polymers and Its Catalytic Activity

Research Project

Project/Area Number 61550600
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 工業物理化学
Research InstitutionNagasaki University

Principal Investigator

KAGAWA Shuichi  Nagasaki University, Faculty of Engineering, Prof., 工学部, 教授 (80037746)

Project Period (FY) 1986 – 1987
KeywordsFixed catalyst / Effectiveness factor of catalyst / Suspended catalyst / Silicone rubber / Hydrogenation of acetone / 不飽和脂肪酸の水素化
Research Abstract

In current liquid-phase catalytic processe, fine particles of metals such as nickel or palladium are widely used as catalysts in suspended state. If these fine particle catalysts can be embedded into a polymer matrix without reducing their intrinsic activity, various benefits other than easy handling of catalyst will be acquired. For example, a new type of catalytic reaction system may be developed with utilizing the hydrophobic property of polymer.
In this research, fine particle catalysts of Ru/carbon and Pd/carbon were embedded into silicone rrubbers and their catalytic activities were examined for the hydrogenations of acetone and unsaturated fatty acid. It was found that, though the reaction rates decreased by about an order of magnitude by embedding, the diffusion of reactants in silicone rubbers was very fast not to impede the reaction rate and that embedded catalysts catalyzed the reaction effectively with the effectiveness factor of catalyst being unity. The reduction in catalytic activity of embedded catalysts was presumed to result from the poisoning of the vapor generated on vulcanization and the filling of micropores of Ru/carbon catalyst with silicone rubber. On the other hand, the selectivity of the intermediate products of consecutive reaction was significantly decreased by embedding of catalyst into polymer, probably because of the cage effect by polymer molecules. These new findings will provide a new concept of the polymer-embedded fine particle catalyst.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 鹿川修一: 触媒. 30. (1988)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S.Kagawa: Proceedings of International Meeting on Advanced Materials.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 鹿川修一: "化学工学協会研究会編, 化学工学シンポジウムシリーズNo.13, 「触媒技術の新しい展開」液相懸濁触媒のポリマー中への包埋固定化" 17-22 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] S. Kagawa: "Embedding of Liquid-Phase Suspended Catalysts into Polymers." Symposium Series 13 on Chemical Engineering, published by The Society of Chemical Engineers, Japan. 17-22 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S. Kagawa: "Design, Preparation, and Performances of Polymer-embedded Catalyst." Shokubai. 30. (1988)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S. Kagawa: "Embedding of Ru/C Catalyst into Silicone Rubbers and Its Catalytic Activity." Proceedings of International Meeting on Advanced Materials.

    • Description
      「研究成果報告書概要(欧文)」より

URL: 

Published: 1989-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi