Study on the thermodynamic and ezperimental carbothermic reduction magnesia

摘要：

In this paper carbothermic reduction magnesia was studied. Thermodynamic analysis showed that the reaction between magnesia and coal occurred easily under vacuum conditions, and the initial reaction temperature decreased with reducing the total pressure. The actual reaction temperature is higher than the initial reaction temperature due to the solid-solid phase diffusion. Under the temperature of 1753K and the pressure of 30Pa, metal magnesium was obtained. Conversion degree increased with increasing CaF2. Prevention of back reaction of carbothermic reduction magnesia needs further investigation.

关键词： Magnesia thermodynamic coal

作者: YU Qing-chun YANG Bin XU Bao-qiang LIU Da-chun LI Zhi-hua DAI Yong-nian

作者单位: National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, Yunnan, China, 650093 Vacuum Metallurgy Key Laboratory for Nonferrous Metal of Yunnan Province, Kunming University of Science and Technology, Kun

会议类型: 国际会议

会议名称: 第九届真空冶金与表面工程学术会议

会议地点: 沈阳

会议语种:英文

页码: 428-433

在线出版日期: 2009-08-24（万方平台首次上网日期，不代表论文的发表时间）