Method of recovering lead and lead compounds from discarded lead storage batteries

摘要

Scrapped storage batteries are first preliminarily crushed to discharge acid from individual cells, thereupon rinsed by alkaline water, crushed in a hammermill and simulataneously dried by a stream of hot air; noncrushed lead pieces are discharged separately from the hammermill and the remaining crushed material is discharged in dry condition from the mill and classified into two fractions, namely a coarse lead fraction and a second fraction consisting of fine particles of lead compounds mixed with coarser pieces of plastic material.