Method of processing small batteries

Details Method of processing small batteries Method of processing small batteries

1987-04-21

1988-10-04

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With heating or cooling of material

241 24, 241 29, 241DIG38, B02C 1912

Patent

active

047751070

ABSTRACT:
A mechanical disintegration is effected in which substantially only the metal sheath of the small batteries is torn apart. The crushed material is roasted at 500.degree. to 1000.degree. C. in a state of motion in an oxidizing atmosphere and the volatilized mercury is recovered from the exhaust gas. The roasted material is separated by sieving and magnetic separation into an iron-containing scrap fraction, a brass-containing scrap fraction and a collectable fraction, which contains manganese, zinc and silver.

REFERENCES:
patent: 4384683 (1983-05-01), Huwald et al.
Lueger, Lexikon der Technik, "Arbeitsweise I. M. mit teilweiser Prallzerkleinerung", Hazemag Prallmuhle, V. 4.

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