摘要
通过在PVA膜中掺杂硫酸铁制得兼备催化和分离功能的酯化膜反应器 ,并用IR、DSC及SEM等测试方法分析了膜的形态结构及组成。实验结果表明 :硫酸铁的加入对膜的渗透性能和酯化反应的选择性及转化率的提高有重要作用 ;对于乙酸 /乙醇酯化反应体系 ,适宜的填充量为 2 0 %～ 30 % (质量比 )。
The membranes with both catalytic and separative properties were made by using the hydrophilic alcohol(PVA) filled Lewis acid Ironic sulfate. The chemical composition, physical structure and morphology were studied by a variety of techniques, including infrared spectrometry(IR), differential scanning calorimeter(DSC) and scanning electron microscopy(SEM) etc. The experimental results showed that the addition of Fe 3(SO 4) 2 was inportant to improve the flux of the membrane flux and the yield and selection of the esterification reaction, and the appropriate cotent of Fe 3(SO 4) 2 for the alcohol/acid esterification was 20%～30%(w/w).
出处
《功能材料》
EI
CAS
CSCD
北大核心
2001年第4期445-446,共2页
Journal of Functional Materials
基金
福建省自然科学基金 (C991 0 0 0 3)
教育部骨干教师基金
教育部重点科技项目
教育部留学回国人员启动费资助
关键词
聚乙烯醇
硫酸铁
膜反应器
酯化
掺杂
催化
polyvinyl alcohol
ironic sulfate
membrane reactor
esterification
