location: Current position: Home >> Scientific Research >> Paper Publications

氟离子对钛硅分子筛合成的影响

Hits:

Indexed by:期刊论文

Date of Publication:2002-06-15

Journal:燃料化学学报

Included Journals:PKU、ISTIC、CSCD

Volume:30

Issue:3

Page Number:273-276

ISSN No.:0253-2409

Key Words:钛硅分子筛;TS-1;氟离子;氟化铵;四丙基溴化铵

Abstract:将氟离子引入钛硅分子筛合成体系,系统研究了氟离子对钛硅分子筛合成的影响。结果表明,四丙基溴化铵-NH4F体系与四丙基溴化铵-有机铵体系有着类似的合成规律:加入晶种可以降低分子筛晶粒粒度;随着NH4F/SiO2降低,晶粒增大;四丙基溴化铵最低用量在TPABr / SiO2 = 0.025~0.05之间;随着 SiO2/TiO2增大,分子筛相对结晶度增加。将氟离子引入钛硅分子筛合成体系能促进钛硅分子筛晶化,但氯离子不具有同样的效应。

Pre One:Epoxidation of propylene using supported titanium silicalite catalysts

Next One:Synthesis of titanium silicalite (TS-1) from the TPABr system and its catalytic properties for epoxidation of propylene