Preparation of high-purity bismuth by sulphur deleadization in vacuum distillation

被引：0
|
作者：
熊利芝
何则强
刘文萍
麻成金
戴永年
机构：
[1] China
[2] College of Chemistry and Chemical Engineering
[3] College of Materials and Metallurgical Engineering
[4] Jishou 416000
[5] Jishou University
[6] Kunming 650093
[7] Kunming University of Science and Technology
来源：
Transactions of Nonferrous Metals Society of China | 2004年 / 06期
关键词：
vacuum distillation; sulphur deleadization; refined bismuth; high-purity bismuth;
D O I：
暂无
中图分类号：
TF817 [铋];
学科分类号：
摘要：
The feasibility of separation of impurities in refined bismuth and sulphur deleadization with vacuum distillation was studied theoretically. Experimental studies on sulphur deleadization were carried out under vacuum. The influences of amount of sulphur, distillation temperature, vacuum degree and distillation time on deleadization were investigated and an optimal technical condition was achieved. The content of lead in refined bismuth can be decreased from 30 μg/g to 0.21 μg/g, which has reached the level of “5N” high-purity bismuth. Other impurities in refined bismuth can be also removed effectively under certain conditions.
引用
收藏
页码：1210 / 1214
页数：5
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