KINETICS OF THE REACTION IN CU-FE AND CU-CR MIXED OXIDES

被引：9

作者：

ELBELLIHI, AA ^{[1
]}

ABDELBADEI, AM ^{[1
]}

DIEFALLAH, EHM ^{[1
]}

机构：

[1] FAC SCI BENHA,DEPT CHEM,BENHA,EGYPT

来源：

THERMOCHIMICA ACTA | 1990年 / 165卷 / 01期

关键词：

D O I：

10.1016/0040-6031(90)80214-J

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The kinetics of the copper ferrite and copper chromite spinel formation reactions were followed in the temperature range 500-800 °C. Kinetic analysis of fractional reaction-time data showed that the reactions are best described by the two-dimensional (D2), Jander's (D3) and Ginstling-Brounshtein (D4) diffusion equations. The activation energies calculated according to these models were found to be model-independent and have the values 59.0 ±1.5 and 97.6 ±3.5 kJ mol-1 for the CuFe2O4 and CuCr2O4 formation reactions, respectively. © 1990.

引用

页码：147 / 152

页数：6