氧化钼氢还原动力学研究  

Study on Kinetics of Hydrogen Reduction of Molybdenum Oxides

作　　者：程仕平[1] 王德志[1] 汪异[1] 王光君[1] 杨刘晓 赵宝华 

机构地区：[1]中南大学材料科学与工程学院,湖南长沙410083 [2]陕西省金堆城钼业公司技术中心,陕西西安710068

出　　处：《稀有金属材料与工程》2007年第3期459-462,共4页Rare Metal Materials and Engineering

基　　金：国家自然科学基金(50301017)资助项目

摘　　要：研究了MoO3还原为MoO2,MoO2还原为Mo的动力学。结果表明:控制MoO3还原为MoO2的主要步骤为界面化学反应,该步骤的表观活化能为58.1kJ/mol;控制MoO2还原为Mo的主要步骤为内扩散,该步骤的表观活化能为30.1kJ/mol。The kinetics of the hydrogen reduction of MoO3 to MoO2 and MoO2 to Mo were investigated. The results showed that the major step of the reduction of MoO3 to MoO2 was controlled by interface-chemical reaction. The apparent activation energy of this step was 58.1 Ll/mol. The major step of the reduction of MoO2 to Mo was controlled by inner diffusion. The apparent activation energy of this step was 30.1 kJ/mol.

关 键 词：钼粉 还原 动力学 

分 类 号：TG113[金属学及工艺—物理冶金]