Title: Extraction process of tin from copper-smelting sludge
Application Number: 85108534 Application Date: 1985.11.18
Publication Number: 1002896 Publication Date: 1986.09.03
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C22B25/06,C25C1/24
Applicant(s) Name: Anshan City Smeltery Address:
Inventor(s) Name:
Attorney & Agent: NIE ZHENXIA
Abstract:
     Tao titanium plate cathode Sn-collection technique is used in this process, and so the facilities for making Sn-cathode plate are eliminated. By use of venturi tube for O2 blowing, the technical key problem of cupric ion depletion is solved. And by use of sodium hexmetaphosphate as an additive, another technical key problem of electrolytic solution turbidness is solved. This invention is a secondary recovery process of tin from copper-smelting sludge. The product of the claimed process contains Sn 99.82%, which is up to the standard of N02 Tin in Chinese National Standards-7B728-65.
Time: 5
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