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铌酸对酯化反应催化性能的研究
引用本文:程宇,陈曙.铌酸对酯化反应催化性能的研究[J].精细石油化工,1994(2):26-30.
作者姓名:程宇  陈曙
作者单位:北京化纤工学院化学化工系 100029
摘    要:研究了新型固体酸催化剂铌酸对乙醇及异戊醇与乙酸酯化反应的催化性能、研究表明热处理温度对水洗法制备的铌酸催化剂的催化活性有显著影响,在350℃处理时活性达到极大值.与HZSM-5相比,铌酸催化剂不仅在乙醇和乙酸的气相酯化反应中表现出良好的催比性能,而且在异戊醇和乙醇的液相酯化反应中亦表现出较好的催化活性和稳定性.

关 键 词:铌酸酯化反应  乙醇  异戊醇  乙酸  催化性能

CATALYTIC BEHAVIOR OF NIOBIC ACID ON ESTERIFICATION OF ETHYL ALCOHOL OR ISO-AMYL ALCOHOL WITH ACETIC ACID
Cheng Yu and Chen Shu.CATALYTIC BEHAVIOR OF NIOBIC ACID ON ESTERIFICATION OF ETHYL ALCOHOL OR ISO-AMYL ALCOHOL WITH ACETIC ACID[J].Speciality Petrochemicals,1994(2):26-30.
Authors:Cheng Yu and Chen Shu
Affiliation:Cheng Yu and Chen Shu Department of Chemical Engineering. Beijing Institute of Chemical Fiber Technology
Abstract:The catalytic behavior of solid acid catalyst-niobic acid on esterification of ethyl alcohol or iso-amyl alcohol with acetic acid have been studied. It was shown that the thermotreating temperature has significant influence on the catalytic activity of the niobic acid catalyst prepared by water-washing and it exhibits maximum catalytic ac-tivity when pretreated at 350 C. In comparision with HZSM-5, niobic acid showed almost the same catalytic ac-tivity and better selectivity for esterification of ethyl alcohol with acetic acid in gas phase,and it possessed better stability for esterification of iso-amyl alcohol with acetic acid in liquid phase than in gas phas.
Keywords:Niobic Acid  Esterification Reaction  Ethyl Alcohol  Iso-Amyl Alcohol  Catalytic Behavior  Acetic Acid  
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