不同晶粒大小ZSM-5分子筛的合成研究  

Study of Synthesizing ZSM-5 Zeolites with Different Crystal Sizes

作　　者：殷基明[1] 刘春英[1] 柳云骐[1] 王有和[1] 张晓云[1] 

机构地区：[1]中国石油大学化学化工学院化学教研室,东营257061

出　　处：《精细石油化工进展》2005年第9期7-11,共5页Advances in Fine Petrochemicals

摘　　要：用水热法合成了晶粒大小在3～12μm 的 ZSM-5分子筛,并考察了晶化温度、晶化时间、模板剂品种和用量等因素对分子筛结晶度和晶粒大小的影响。结果表明,以四丙基氢氧化铵为模板剂或双模板剂如正丙胺-四丙基氢氧化铵、二乙醇胺-四丙基氢氧化铵、乙二胺-四丙基氢氧化铵,尤其是正丙胺-四丙基氢氧化铵为双模板剂,其摩尔比范围为32.2:(1.66～10.11),晶化温度160℃,晶化时间92 h 条件下,合成的 ZSM-5分子筛结晶度高,粒度分布均匀,粒径尺寸6～8μm,热稳定性好,经800℃高温焙烧3 h,相对结晶度仍达98.53%,实验重复性好。ZSM - 5 zeolites with different crystal sizes ranged from 3 to 12 μm were synthesized using hydrothermal method under different reaction conditions. The effects of crystallization temperature, crystallization time, and kinds and amount of templates on the crystallinity and crystal sizes were examined. The results showed that ZSM - 5 zoolites synthesized at crystallizing temperature of 160℃ for 92 h of crystallizing time in the presence of tetrapropyl ammonium hydroxide as template or n - propyl amine - tetrapropyl ammonium hydroxide, diethanolamine - tetrapropyl ammonium hydroxide, ethylene diamine - tetrapropyl ammonium hydroxide, especially n - propyl amine - tetrapropyl ammonium hydroxide as two templates [ （molar ratio of n - propyl amine to tetrapropyl ammonium hydroxide 32.2：（ 1.66 - 10.11 ））] had high crystallinity, uniform particle size distribution（ particle size of 6-8 μm）, good thermal stability （98.53% of relative crystallinity under 800℃ calcinations）, and good repeatability.

关 键 词：ZSM-5分子筛 晶粒大小 模板剂 结晶度 ZSM-5分子筛 晶粒大小 合成研究 四丙基氢氧化铵 相对结晶度 晶化温度 晶化时间 水热法合成 实验重复性 

分 类 号：TQ424.25[化学工程] TQ134.11