Method for wrought and cast aluminum separation

摘要

A method of separating wrought and cast aluminum from a scrap mixture containing the two is disclosed. In this method, the scrap mixture is first heated to a temperature above the solidus temperature of the cast aluminum scrap. At this temperature, the scrap mixture is crushed thereby causing the cast aluminum to fragmentize into small pieces while merely causing flattening of the wrought aluminum. By using an appropriately sized screen, the cast aluminum fragments can then be separated from the wrought aluminum.