Recovery of the nonferrous metals from auto shredder rejects by air classification

Technical Report · Thu Apr 01 04:00:00 EST 1971

OSTI ID:7209396

Chindgren, C J; Dean, K C; Peterson, L

Two air classification systems were built and tested as separatory devices for recovering the nonferrous metal values from shredded automotive nonmagnetic reject scrap. A horizontal air system with a capacity up to 16 tons per hr was used to obtain preliminary separations, and a smaller capacity vertical system was used as a cleaning device. Shredded automobile reject materials containing aluminum, copper, and zinc values of about $55 per ton were air-classified in the horizontal elutriator. Ninety-six percent of the metal was recovered in a 74-percent metal concentrate. Tandem operation of both classifiers recovered 92 percent of the metal in an 80-percent concentrate while rejecting 87 percent of the nonmetallics. Heavy media separation of the air-classified concentrate produced an overall recovery of 91 percent of the metal in the form of a 99-percent metal concentrate.

• Research Organization: Bureau of Mines, Washington, DC (USA)
• OSTI ID: 7209396
• Report Number(s): BM-TPR-31
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
42 ENGINEERING
420900 -- Engineering-- Waste Processing Plants & Equipment-- (-1989)
ALUMINIUM
AUTOMOBILES
COPPER
ECONOMICS
ELEMENTS
INDUSTRIAL PLANTS
MANAGEMENT
MATERIALS RECOVERY
METALS
OPERATION
PROCESSING
RECOVERY
RECYCLING
SOLID WASTES
TRANSITION ELEMENTS
VEHICLES
WASTE MANAGEMENT
WASTE PROCESSING
WASTE PROCESSING PLANTS
WASTES
ZINC