Recent advances in immobilization of heteropolyacids |
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| Authors: | Yusuke Izumi |
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| Institution: | (1) Department of Molecular Design and Engineering, School of Engineering, Nagoya University, Furocho, Chikusa-ku, 464-01 Nagoya, Japan |
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| Abstract: | Freely water-soluble heteropolyacid could be made insoluble either by supporting on active carbon or by forming acidic cesium
salts. In addition, 12-tungstophosphoric acid and its acidic cesium salt could be effectively immobilized in silica matrices
by means of a sol-gel technique which involves the hydrolysis of ethyl orthosilicate to give insoluble, readily recoverable,
and highly active solid acid catalysts for the hydrolysis of ethyl acetate. |
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