The Behavior of Silicon Diozide in The Process of Aluminum Metallurgy in Low Valence Method

摘要：

This paper induces the reaction of silicon dioxide when aluminum oxide and bauxite is used in the process of low valence aluminum fluoride aluminum metallurgy. The experiment whose temperature is above 1400℃ shows that Silicon dioxide could be changed in four ways:①be reduced to simple substance silicon, and carbonized to SiC; ②be reduced to simple substance silicon, and generate ferrosilicon with reduecd Fe; ③the silicon dioxide reacts with cryolite, generating aluminosilicate in the gas phase; ④generates gas of silicon tetra-fluoride with cryolite, and generates Na2SiF6 in condensation phase with the sodium fluoride discomposed by cryolite.

关键词： aluminum metallurgy silicon diozide behavior

作者: LI Qiu-xia YANG Bin DAI Yong-nian

作者单位: National Engineering Laboratory of Vacuum Metallurgy, Kunming University of Science and Technology, National Engineering Laboratory of Vacuum Metallurgy, Kunming University of Science and Technology, Chemistry and Chemical Engineering College of Yunnan Normal University, Kunming, 650092

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: 129-134

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）