摘要
在静态水热条件下降低碱度进行4A分子筛的合成。结果表明，降低合成体系的碱度，需要提高晶化温度和延长晶化时间才能得到晶化产物；碱度越低，出现P型分子筛杂相的温度越高；晶种在晶化过程中必不可少，4A和5A分子筛都可以作为晶种。
Zeolite A has been synthesized under lower alkalinity by using both 4A and 5A zeolite as the seed crystal. It has been found that in the system with lower alkalinity, zeolite A can only be obtained at the higher crystallizing temperature and longer duration of crystallization. The lower the alkalinity is, the higher the temperature at which zeolite P appears. In the crystallization process the seed crystal is necessary.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2008年第B10期159-162,共4页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
国家自然科学基金（20873069）和重大基础研究发展计划（2003CB615801
2009CB623502）项目资助
关键词
4A分子筛
降低碱度
晶种
zeolite A
lower alkalinity
seed crystal
