ACIDIC AND CATALYTIC PROPERTIES OF NIOBIC ACID CRYSTALLIZED AT LOW-TEMPERATURE

被引：21

作者：

GUO, CX

QIAN, ZH

机构：

[1] Department of Chemistry, Jilin University, Changchun

来源：

CATALYSIS TODAY | 1993年 / 16卷 / 3-4期

关键词：

D O I：

10.1016/0920-5861(93)80077-E

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Niobic acid was crystallized at 120-degrees-C for 48 h, which showed the largest acid amounts at higher acid strengths. The crystallized niobic acid calcined at 300-degrees-C was found to show higher activity than uncrystallized niobic acid and niobic acid washed with water or treated with sulfuric acid or phosphoric acid for the dehydration of isopropanol and the esterification of ethanol with acetic acid.

引用

页码：379 / 385

页数：7

共 16 条

[1] NIOBIC ACID AS AN EFFICIENT CATALYST FOR VAPOR-PHASE ESTERIFICATION OF ETHYL-ALCOHOL WITH ACETIC-ACID [J].