| THE SYNTHESIS AND STUDIES ON PALLADIUM CATALYSTS ANCHORED ON CHELATE RESIN |
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| 作者姓名： | 何炳林 王俐 |
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| 作者单位： | Institute of Polymer Chemistry，Nankai University，Tianjin 300071，PRC，Institute of Polymer Chemistry，Nankai University，Tianjin 300071，PRC |
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| 摘 要： | A chelate resin with 8-aminoquinoline group attached to a styrene-divinybenzene copolymer matrix was reacted with PdCl_2, forminga polymeric palladium complex, which was reduced with different reducing agents, such as hydrogen, stannous chloride, sodium borohydride, lithium aluminum hydride, hydrazine and basic aqueous methanolic solution and thus the polymer-supported palladium (Ⅱ) complex, colloidal palladium and palladium complex with different valence states were obtained. The hydrogenation of n-hexene in methanol at 40℃ under atmospheric hydrogen pressure and the selective hydrogenation of 1,5,9-cyclododecatriene at 100℃ under 20 kg/cm~2 hydrogen pressure were studied. The results showed that the palladium complexes With different valence states prepared with hydrazine or methanol-water (pH=11) were effective catalysts for the hydrogenation of olefins. The loss of palladium on catalysts was correlated to the palladium dispersion and valence states. It was found thst the loss of palladium decreas
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THE SYNTHESIS AND STUDIES ON PALLADIUM CATALYSTS ANCHORED ON CHELATE RESIN |
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| HE BING-LIN AND WANG LI.THE SYNTHESIS AND STUDIES ON PALLADIUM CATALYSTS ANCHORED ON CHELATE RESIN[J].Science in China(Chemistry),1990(2). |
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| Authors: | HE BING-LIN AND WANG LI |
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| Abstract: | |
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| Keywords: | palladium catalysis hydrogenation different valence states polymer |
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