Study of the selectivity of a V2O5-ZrO2 catalyst for partial oxidation of o-xylene at high temperatures

被引：6
作者：
Makedonski, L [1 ]
Nikolov, V
Nikolov, N
Blaskov, V
机构：
[1] Bulgarian Acad Sci, Inst Gen & Inorgan Chem, Sofia 1113, Bulgaria
[2] Bulgarian Acad Sci, Inst Chem Engn, Sofia 1113, Bulgaria
[3] Inst Pedag, Shoumen, Bulgaria
来源：
REACTION KINETICS AND CATALYSIS LETTERS | 1999年 / 66卷 / 02期
关键词：
V2O5; -; ZrO2; catalyst; oxidation; o-xylene; temperature stability;
D O I：
10.1007/BF02475796
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
It has been established that at high temperatures (above 450 degrees C) the V2O5-ZrO2 catalyst exhibits a higher selectivity in the oxidation of o-xylene to phthalic anhydride than does the conventional V2O5-TiO2(a) catalyst. The catalyst selectivity is found to increase with respect to partial oxidation of o-xylene, the valuable by-product maleic anhydride being obtained. Studies by different physicochemical methods have shown that V2O5-ZrO2 undergoes no significant phase and structural changes under high-temperature conditions.
引用
收藏
页码：237 / 243
页数：7
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