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
90106787 Application Date
Title 名称 Silver extraction from tin anode mud containing low silver content
Publication Number
1058993 Publication Date
Approval Pub. Date Granted Pub. Date 1995.03.08
International Classification 分类号 C22B3/08,C22B3/46,C22B7/00
Applicant(s) Name
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

Method for recovery silver from solid sensitive material
Silver reclaiming method from waste colour sensitive material
High-effect dry cleaning agent and preparing tech.
Method for recovering silver from micro-silver contained waste liquid
Symmetry database system and method for data processing
Floating seedlings culturing method in full ventillation type small arch shed
Method and system of data management and database
Grid tray type seeding and growing seedling film, and its prodn. method
Method for calculating Lyapunov exponents of control system
Digital display board
Note:All patent data come from State Intellectual Property Office of the People's Republic of China. If there were discrepancies between here and the State Intellectual Property office, the later is more accurate. The patent data is only for public exchange and learning purposes. We are not responsible for the adverse consequences with unverified use of the data.