A PROCESS FOR RECOVERING METALLIC CONSTITUENTS FROM SMALL BATTERIES BY MECHANICAL DISINTEGRATION

摘要

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 DEG to 1000 DEG 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.