Utilization of Automobile and Ferrous Refuse Scrap in Cupola Iron Production.
Daellenbach-CB; Mahan-WM; Drost-JJ
Proc 4th Miner Waste Utilization Symp Chicago Illinois, 1974 May; :417-423
The feasibility of producing foundry pig iron using combinations of shredded automobile scrap and ferrous waste products separated from municipal refuse was investigated in a pilot plant cupola. The distribution of tramp elements, especially copper and tin, originally contained in the scrap burden is given for cupola metal products. Research has demonstrated that combinations of automobile scrap and municipal refuse scrap can be successfully converted to gray irons. Moreover, the aluminum, in the form of bimetallic cans, contained in the scrap separated from raw municipal refuse can be used advantageously as a means of controlling metal sulfur levels and improving both furnace performance and recovery of silicon in the hot metal. Compared with 100 percent auto scrap, a blend of 35 percent raw refuse scrap and 65 percent auto scrap allowed the sulfur levels in the iron to be decreased by 60 percent and promoted the recovery of approximately 0.8 percent additional silicon in the metal.
Proc. 4th Miner. Waste Utilization Symp., Chicago, Illinois, May 7-8, 1974, PP. 417-423