石油化工2012，Vol.41Issue(1)：46-50,5.
拟薄水铝石胶溶指数影响因素的研究
Factors Affecting the Dispersion Index of Pseudo-Boehmite
杨玉旺 1戴清 1刘敬利1
作者信息
- 1. 中海油天津化工研究设计院,天津300131
- 折叠
摘要
Abstract
Pseudo-boehmite was prepared through sodium aluminate-aluminum sulfate neutralization method. The factors affecting the dispersion index of the prepared pseudo-boehmite, namely sodium aluminate solution mass concentration(based on A12O3), precipitation temperature, precipitation pH and aging time, were investigated. The effects of the dispersion index on A12O3 support properties were studied. Under the conditions of sodium aluminate solution mass concentration 100 - 180 g/L,precipitation temperature 55 - 70 ℃, precipitation pH 6.5 - 8.5 and aging time 60 -120 min, the pseudo-boehmite with large dispersion index could be prepared. The dispersion index influenced the crush strength of the alumina support obviously. In order to prepare alumina support with crush strength more than 60 N, the dispersion index of the prepared pseudo-boehmite must be higher than 85%. The dispersion index has little influence on water absorption rate, specific surface area and pore volume of the prepared alumina support.关键词
拟薄水铝石/胶溶指数/氧化铝载体/压碎强度Key words
pseudo-boehmite/ dispersion index/ alumina support/ crush strength分类
化学化工引用本文复制引用
杨玉旺,戴清,刘敬利..拟薄水铝石胶溶指数影响因素的研究[J].石油化工,2012,41(1):46-50,5.
