化工进展2011，Vol.30Issue(6)：1253-1258,6.
新型铬系催化剂的制备及其载体性能
Preparation of novel chromium-based catalyst and study on its carrier performance
张翠玲 1刘文霞 1张鹏 1刘强 1李丽1
作者信息
- 1. 中国石油兰州化工研究中心,甘肃,兰州,730060
- 折叠
摘要
Abstract
Both self-made silica and reference silica were modified by the sol-gel method and the traditional impregnation, method, and were used as carrier to prepare the chromium-based catalysts.The two silicas were investigated by using TG-DTA, BET and SEM, and the supported catalysts were used in polymerization experiments. The results showed that the reference silica had sufficiently more preliminary dry ness and better breaking strength than the self-made silica, but worse surface configuration. The activity of catalyst was enhanced by adding Ti. When the Ti modifier was added in the same amount, the catalyst which prepared with silica that had been modified by the sol-gel method had better catalytic activity compared to that catalyst which prepared with silica that had been modified by the traditional impregnation method.关键词
铬系催化剂/硅胶/载体/改性Key words
chromium-based catalyst/ silica gel/ carrier/ modification分类
化学化工引用本文复制引用
张翠玲,刘文霞,张鹏,刘强,李丽..新型铬系催化剂的制备及其载体性能[J].化工进展,2011,30(6):1253-1258,6.
