Recovery of Secondary Copper and Zinc in the United States.
Carrillo FV; Hibpshman MH; Rosenkranz RD
NTIS: PB 233 215 :58 pages
Of the total quantity of secondary copper and zinc that became obsolete in the United States from 1961 through 1970, more than 11 million tons of copper and 10 million tons of zinc were not recovered. These estimates are based on a study of the flow and recovery of old copper and zinc scrap by consumption end-use. This report describes (1) where copper and zinc are being used; (2) when they become obsolete and available as secondary metal; (3) how they are being collected for recycling; and (4) how much might be recovered from scrap that presently is not being recycled.
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