Removal of copper from ferrous scrap

Patent · Thu Jul 30 00:00:00 EDT 1987

OSTI ID:7018393

Blander, M; Sinha, S N

A process for removing copper from ferrous or other metal scrap in which the scrap is contacted with a polyvalent metal sulfide slag in the presence of an excess of copper-sulfide forming additive to convert the copper to copper sulfide which is extracted into the slag to provide a ratio of copper in the slag to copper in the metal scrap of at least about 10.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• Assignee: ANL; ERA-14-000845; EDB-88-184227
• Patent Number(s): PATENTS-US-A6079389
• OSTI ID: 7018393
• 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
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
ADDITIVES
ALLOYS
CHALCOGENIDES
COPPER
COPPER COMPOUNDS
COPPER SULFIDES
ELEMENTS
EXTRACTION
INVENTIONS
IRON ALLOYS
IRON BASE ALLOYS
IRON COMPOUNDS
IRON SULFIDES
KINETICS
MANAGEMENT
METALS
PURIFICATION
REACTION KINETICS
RECYCLING
SCRAP
SCRAP METALS
SEPARATION PROCESSES
SLAGS
SOLID WASTES
STEELS
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTES