Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Patent
1992-03-03
1993-06-22
Andrews, Melvyn J.
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
75422, 75425, 75634, C22B 300
Patent
active
052213250
ABSTRACT:
A process for recovering silver oxide and metals from a spent silver oxide button cell. The process relates to a physical process which consists of a heating and a cooling process to separate the shell and the content (silver, silver oxide) of the spent silver oxide cell, so that silver oxide, silver and other metals such as zinc, iron and nickel can be recovered and reused.
REFERENCES:
patent: 5120409 (1992-06-01), Hanulik
Cheau Tei-Chih
Huang Bih-Shyang
Lee Pak-Hing
Onlin Tyngbin
Andrews Melvyn J.
Industrial Technology Research Institute
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