聚N-乙烯基吡咯烷酮分散钯催化剂加氢性能的研究

Hydrogenation Properties of Palladium Catalyst Dispersed on Poly N-Vinyl Pyrrolidone

制备了聚N-乙烯基吡咯烷酮分散钯催化剂,考察了它对不同底物的加氢活性和在不同介质中对丙烯酸甲酯的加氢活性。结果表明,不同底物的加氢活性和反应级数都有很大的差别,且反应介质对丙烯酸甲酯的加氢速率也有很大影响。还得到了丙烯酸甲酯加氢反应的速率方程。

The palladium catalyst dispersed on poly N-vinyl pyrrolidone was prepared. The rate for the hydrogenation of olefins, nitrobenzene and methyl acrylate in different solvents over the catalyst was examined. The experimental results indicate that both the hydrogenation rate and the reaction order of different substrates are different dramatically from each other. The rate for the hydrogenation of methyl acrylate is greatly affected by the solvent. Kinetics for the hydrogenation of methyl acrylate in methanol was also studied.