Original document(4 pages) Authorized document(2 pages) 中文版
    The tin anode mud which mainly contains Pb and Sn, but less Ag is treated by steps such as oxidation calcination, two-class leaching out with diluted sulfuric acid and copper plate replacement of leaching liquid to extract silver prior. The purity of silver is about 99.9% and its recovery is about 92%.
Application Number
申请号
90106787 Application Date
申请日
1990.08.04
Title 名称 Silver extraction from tin anode mud containing low silver content
Publication Number
公开号
1058993 Publication Date
公开日
1992.02.26
Approval Pub. Date Granted Pub. Date 1995.03.08
International Classification 分类号 C22B3/08,C22B3/46,C22B7/00
Applicant(s) Name
申请人
Kunming Noble Metal Inst., Chinese Nonferrous Metal Industry Corp.
Address 地址 650221
Inventor(s) Name 发明人 Liu Zhenghua
Attorney & Agent 代理人 ZHOU YIKANG

  
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