Solubility of NiFe<,2>O<,4> in Cryolite-based Melts

摘要：

The solubility of Nickel Ferrite (NiFe<,2>O<,4>) has been measured in as a function of electrolyte composition and temperature. The solubilities of NiFe <,2>O<,4> increased with decreasing alumina concentration. In usual melts (3％Al<,2>O<,3>, 5％CaF <,2>, CR=2.3), the solubilities of NiFe<,2>O<,4> for temperature ranging from 975 to 1030℃ are represented by the relationships, In (wt.％Fe) =5.06- 9909/T and In (wt.％Ni) =3.58-9941/T respectively. Meanwhile the solubilities for Fe<,2>O<,3> and NiO are represented by the equations, In (wt. ％Fe) =4.11- 8153/T and In (wt.％Ni) =2.08-7472/T respectively. Attention was also paid to the effect of NiO contents on the solubilities of NiFe<,2>O<,4>-NiO composite ceramic. The solubilities of composite ceramic decreased moderately with increasing NiO contents.

关键词： inert anode aluminum electrolysis melt ceramic solubility

作者: Qingwei Qin Guangqiang Li

作者单位: Key Laboratory for Ferrous Metallurgy and Resources Utilization, Ministry of Education, Wuhan University of Science and Technology, China

会议类型: 国际会议

会议名称: 2006现代科技国际研讨会(The International Workshop on Modern Science and Technology in 2006)

会议地点: 北京

会议语种:英文

页码: 38-43

在线出版日期: 2006-04-01（万方平台首次上网日期，不代表论文的发表时间）