Removal of copper from ferrous scrap
Patent
·
OSTI ID:7269057
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.
- DOE Contract Number:
- W-31109-ENG-38
- Assignee:
- PTO; EDB-94-116002
- Patent Number(s):
- A; US 4925488
- Application Number:
- PPN: US 7-079389
- OSTI ID:
- 7269057
- Country of Publication:
- United States
- Language:
- English
Similar Records
Removal of copper from ferrous scrap
Removal of copper from ferrous scrap
Process for removing copper in a recoverable form from solid scrap metal
Patent
·
Sun Dec 31 23:00:00 EST 1989
·
OSTI ID:867378
Removal of copper from ferrous scrap
Patent
·
Thu Jul 30 00:00:00 EDT 1987
·
OSTI ID:7018393
Process for removing copper in a recoverable form from solid scrap metal
Patent
·
Sat Dec 31 23:00:00 EST 1994
·
OSTI ID:869738
Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
CHALCOGENIDES
CONCENTRATION RATIO
COPPER
COPPER COMPOUNDS
COPPER SULFIDES
ELEMENTS
EXTRACTION
MANAGEMENT
MATERIALS RECOVERY
METALS
PROCESSING
SCRAP
SCRAP METALS
SEPARATION PROCESSES
SOLID WASTES
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
CHALCOGENIDES
CONCENTRATION RATIO
COPPER
COPPER COMPOUNDS
COPPER SULFIDES
ELEMENTS
EXTRACTION
MANAGEMENT
MATERIALS RECOVERY
METALS
PROCESSING
SCRAP
SCRAP METALS
SEPARATION PROCESSES
SOLID WASTES
SULFIDES
SULFUR COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES