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过程工程学报 ›› 2018, Vol. 18 ›› Issue (2): 405-410.DOI: 10.12034/j.issn.1009-606X.217267

• 材料工程 • 上一篇    下一篇

添加剂对三氧化钼挥发的影响

杨双平*, 魏起书, 周江峰, 杨 波, 王 琛   

  1. 西安建筑科技大学冶金工程学院,陕西 西安 710055
  • 收稿日期:2017-06-28 修回日期:2017-09-05 出版日期:2018-04-22 发布日期:2018-04-10
  • 通讯作者: 魏起书 707606785@qq.com

Effect of Additives on Volatilization of Molybdenum Oxide

Shuangping YANG*, Qishu WEI, Jiangfeng ZHOU, Bo YANG, Chen WANG   

  1. College of Metallurgical Engineering, Xi?an University of Architecture and Technology, Xi?an, Shaanxi 710055, China
  • Received:2017-06-28 Revised:2017-09-05 Online:2018-04-22 Published:2018-04-10

摘要: 根据基础热力学数据,对C, SiC, Mn, Si, Al, Fe等还原剂还原氧化钼和钼酸钙进行了热力学分析,通过热重实验研究了还原剂(C或SiC)、抑制剂(CaO)对MoO3挥发的抑制效果. 结果表明,1300℃下纯MoO3挥发率达85.68%,添加CaO或还原剂后挥发率约为20%,同时添加还原剂和CaO时挥发率约为10%.

关键词: 热力学, 热重, 氧化钼, 还原剂, 挥发率

Abstract: Based on the basic thermodynamic data, the thermodynamic analysis of the reducing molybdenum oxide and calcium molybdate by reducing agents such as C, SiC, Al, Mn, Si and Fe. The thermogravimetric experiments was conducted to study the effect of additives including reducing agent of C or SiC and inhibitor of CaO on volatilization of molybdenum oxide. The results showed that the volatilization rate of pure molybdenum trioxide was 85.68% at 1300℃, and the addition of CaO or reductant (C or SiC), the volatilization rate was about 20%, while with the addition of reducing agent and CaO, molybdenum oxide volatilization rate was only about 10%.

Key words: Thermodynamic, thermogravimetric, molybdenum oxide, reducing agent, volatilization rate