摘要
铝溶胶是催化裂化催化剂制备中最重要的粘结剂之一.由于铝溶胶在干燥过程中颗粒从纳米级可以长大到微米级,目前尚没有铝溶胶比表面积测定的报道.采用将一定量的铝溶胶预先高度分散到大孔硅胶孔道内,从而避免铝溶胶颗粒在干燥过程中的长大,将其干燥后测定其比表面积,外推到铝溶胶含量,采用BET法测得铝溶胶比表面积为310 m2/g.
Alumina sol is one of the most important binders for the fluid catalytic cracking catalysts.Up to now there is no report on the determination of the specific surface area of alumina sol due to the sintering of nano-alumina particles during the drying process.Alumina sol is dispersed to pores of silica gel and is dried without sintering,the determined specific surface area of alumina sol is 310 m2/g.
出处
《湖南师范大学自然科学学报》
CAS
北大核心
2013年第3期56-59,共4页
Journal of Natural Science of Hunan Normal University
基金
科技部973计划资助项目(2006CB202500)
作者简介
通讯作者。E-mail：wenjj．chji@sinopec．com
