Process for recycling an unsorted mixture of spent button...

Details Process for recycling an unsorted mixture of spent button... Process for recycling an unsorted mixture of spent button...

C - Chemistry, Metallurgy

25

C

53/354, 204/66,

C25C 1/00 (2006.01) B29B 17/02 (2006.01) C22B 3/04 (2006.01) C22B 7/00 (2006.01) H01M 6/52 (2006.01)

Patent

CA 2022763

RECYTEC S.A. NEUCHATEL/SWITZERLAND PROCESS FOR RECYCLING AM UNSORTED MIXTURE OF SPENT BUTTON CELLS AND/OR OTHER METALLIC OBJECTS AND FOR RECOVERING THEIR METALLIC COMPONENTS ABSTRACT Process for recycling an unsorted mixture of spent button cells and recovering their metallic components, comprising an anodic dissolution of the button cells, wherein metals constituting these cells are dissolved and redeposited at one or more cathodes, wherein metallic oxides are deposited in the anodic chamber and waste products (plastic, paper, etc) accumulate in an anodic basket. Oxides are reduced to metals by thermal decomposition, mercury is recovered by distillation and the other metals are recovered by electrolytic separation. - 1 -

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