铌酸改性及催化合成油酸异丁酯
Modification and Application of Niobic Acid Catalysis in Synthesis of Tebelon
作者: 金建策 , 吴盼盼 , 王 晴 , 葛洪良 , 王新庆 ：中国计量大学，材料科学与工程学院，浙江 杭州; 金顶峰 ：中国计量大学，材料科学与工程学院，浙江 杭州；浙江大学，化学工程和生物工程学院，浙江 杭州; 张 明 ：中国计量大学，环境工程系，浙江 杭州; 王正宝 ：浙江大学，化学工程和生物工程学院，浙江 杭州; 楼 辉 ：浙江大学，化学系，浙江 杭州;
关键词: 油酸异丁酯； 改性铌酸； 降凝剂； 催化剂； Tebelon； Modified Niobic Acid； Pour Depressant； Catalyst
摘要:Abstract: Four kinds of modified niobic acids were synthesized by potassium hydroxide melting method using different inorganic acid treatments. The structure and surface acidity of this niobic acid were studied by XRD, N2 adsorption-desorption and NH3-TPD. The catalytic activity of modified niobic acid in the synthesis of tebelon had been studied. The experimental results indicated that H2SO4-Nb2O5 has the better performance and stability. The optimal conditions of etherification reaction are as follows: catalyst amount used for raw material 1.0% (weight ratio), reaction temperature 110˚C, mole ratio of alcohol to acid 2:1 and reaction time 8 h.
文章引用: 金建策 , 吴盼盼 , 王 晴 , 金顶峰 , 张 明 , 葛洪良 , 王新庆 , 王正宝 , 楼 辉 (2016) 铌酸改性及催化合成油酸异丁酯。 化学工程与技术， 6， 55-63. doi: 10.12677/HJCET.2016.63007
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