MoO_3-MoO_2氢还原过程中的速率控制  

Rate Control of MoO_3-MoO_2 in the Hydrogen Reduction Process

作　　者：刘秋萍[1] 

机构地区：[1]金堆城钼业股份有限公司金属分公司,陕西西安710077

出　　处：《中国钨业》2012年第5期25-28,共4页China Tungsten Industry

摘　　要：MoO3-MoO2反应过程属放热反应,反应过程受反应产物MoO2的自催化。根据该反应过程中氢气流量、氢气露点、不同温度梯度与反应速率的关系,通过合理的工艺优化,有效地控制反应速率、充分利用反应过程中放出的热量来维持后续反应的进行,降低MoO2的板结与团聚,稳定了MoO2产品质量。The MoO3-MoO2 reaction process is an exothermic reaction, whose reaction process is auto-catalytized by MOO2. This paper studies the relationship of reaction rate, hydrogen flow rate during reaction process, hydrogen dew point, and different temperature gradient. The product quality of MoO2 is improved by reducing the compaction and cluster of MoO2 out of optimizing hydrogen reduction process, which makes full use of heat generated by reaction process to maintain the following reaction and effectively controls the reaction rate.

关 键 词：放热反应 MoO3-MoO2氢还原 反应速率 MoO2的板结与团聚 

分 类 号：TG146.412[一般工业技术—材料科学与工程] TF841.2[金属学及工艺—金属材料]