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有色金属(冶炼部分):2013,(11):10-12
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低银铋熔体加锌自动脱银工艺研究
郭伟忠,丘克强
(中南大学 化学化工学院,中南大学 化学化工学院)
Study on Automatic Desilverization from Low Silver-Bearing Bismuth Molten by Adding Zinc
GUO Wei-zhong and QIU Ke-qiang
(School of Chemistry and Chemical Engineering,Central South University,)
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投稿时间:2013-05-16     修订日期:2013-05-17     录用日期:2013-05-20     网络发布日期:2013-10-25
中文摘要: 利用低银铋熔体通过熔融锌液柱而自动脱银,主要考察锌液柱高度、温度及时间对脱银效果的影响。结果表明,在锌液柱高度为12 cm、温度773 K及时间120 min的条件下,可将含Ag 0.06%的铋熔体的含银量降至10 μg/g左右,脱银率98.01%;也可以将含Ag 0.18%的铋熔体含银量降至33 μg/g左右,脱银率93.45%。本工艺具有消耗低、劳动强度小、环境友好等优点。
中文关键词: 除银  低银铋熔体  锌  银
Abstract:The silver in low silver-bearing bismuth molten was removed by being passed through zinc liquid column. The effects of height of zinc liquid column, temperature and time on desilverization were studied. The results show that the silver mass content in bismuth molten reduces from 0.06% to 10 μg/g with the removal rate of silver of 98.01% and from 0.18% to 33 μg/g with the removal rate of silver of 93.45% under the conditions including height of zinc liquid column of 12 cm, temperature of 500 ℃ and time of 120 min. The processes have the advantages of low consumption, low labor strength and environment friendliness.
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基金项目:湖南省重大专项(2009PJ1007-4)
引用文本:
郭伟忠,丘克强.低银铋熔体加锌自动脱银工艺研究[J].有色金属(冶炼部分),2013(11):10-12.
GUO Wei-zhong,QIU Ke-qiang.Study on Automatic Desilverization from Low Silver-Bearing Bismuth Molten by Adding Zinc[J].Nonferrous Metals (Extractive Metallurgy),2013(11):10-12.

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