摘要
通过对一种微孔有机芳香聚合物进行磺酸化制备了微孔固体酸催化剂。用傅里叶变换红外光谱(FTIR)、X射线衍射(XRD)、表面酸量测定、元素分析和比表面积测试对催化剂进行了表征,并以油酸与甲醇的酯化反应评价了催化剂的催化活性。结果表明,该催化剂具有较大的比表面积(540 m2/g)和孔容(0.40 cm3/g),表面酸量为2.9 mmol/g,其对酯化反应的催化活性要高于工业离子交换树脂(Amberlyst-15),在75℃反应6 h后,油酸转化率高达93%,并可再生使用。
A novel solid acid catalyst had been prepared from microporous organic aromatic polymers through a controlled sulfonation procedure. The sulfonated catalyst was characterized by means of FTIR spectroscopy, X-ray diffraction, surface acidity, elemental analysis and BET method. Its catalytic performance was determined via esterification of oleic acid with methanol. The results showed that the solid catalyst had high BET surface area （540 m2/g） , pore volume （0. 40 cm3/g ） and the surface acidity was up to 2.9 mmoL/g. The solid acid exhibited higher activity than Amberlyst - 15 for esterifieation of oleic acid ,whose conversion could reach 93% at 75 ℃ for 6 h. The solid acid catalyst showed excellent regenerating properties.
出处
《精细化工》
EI
CAS
CSCD
北大核心
2014年第5期575-580,共6页
Fine Chemicals
基金
海南大学青年基金项目(qnjj1164)~~
关键词
固体酸催化剂
微孔有机聚合物
酯化反应
磺酸化
再生
催化与分离提纯技术
solid acid catalyst
microporous organic polymers
esterification
sulfonation
regeneration
catalysis, separation and purification technology
