SiO_2负载的杂多酸催化剂制备及其在合成异戊二烯反应中性能研究

SiO_2 supported heteropolyacids catalysts preparation and their catalytic performance for isoprene synthesis

采用浸渍法制备了几种SiO_2负载的杂多酸催化剂,并考察其在异丁烯和甲醛合成异戊二烯中的催化性能。结果表明,SiO_2担载的硅钨酸催化剂催化性能最佳,异戊二烯的产率达10.1%。

Several SiO_2 supported heteropolyacids catalysts were prepared with impregnation method,the catalytic activity of resulting composites was evaluated in one-step condensation from isobutylene and formaldehyde to isoprene. The result showed that SiO_2 supported H3Si W12O40 catalysts exhibited the best catalytic performance,isobutene conversion reached 10. 1%.