Method for processing used battery

Details Method for processing used battery Method for processing used battery

1992-03-06

1993-04-06

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75401, 75693, C22B 700

Patent

active

051999757

ABSTRACT:
The invention relates to a method for recovering cadmium in used nickel-cadmium batteries by heat treatment. According to the invention, a plastic case for a battery can be separated from a battery body easily without leaking cadmium. High purity cadmium can be recovered by volatilizing cadmium in a non-oxidizing atmosphere.

REFERENCES:
patent: 2891881 (1959-06-01), Jaffe
patent: 3558304 (1971-01-01), McIntyre

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