Sodium expansion in carbon/TiB2 cathodes during aluminum electrolysis

被引：0

作者：

Xue, Jilai ^{[1
]}

Liu, Qingsheng ^{[1
]}

Ou, Wenli ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Dept Nonferrous Met, Xueyuan Rd 30, Beijing 100083, Peoples R China

来源：

LIGHT METALS 2007 | 2007年

基金：

中国国家自然科学基金;

关键词：

sodium expansion; carbon/TiB2; cathodes; aluminum electrolysis;

D O I：

暂无

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Experimental investigation of sodium expansion in carbon/TiB2 cathodes during aluminum electrolysis was carried out in a modified Rapoport apparatus. The sodium expansion increased with increasing current density and cryolite ratio, but decreased with increased TiB2 content. A model of the relationship between the sodium expansion and time during the Rapoport test has been used for the TiB2-carbon cathode materials. Diffusion coefficient and other parameters required in the model can be obtained. TiB2 addition can contribute to a reduction in uptake of Na into the carbon-based composite cathodes, thus leading to a decrease in sodium expansion during aluminum electrolysis.

引用

页码：1061 / +

页数：3