Removal of copper from ferrous scrap
Abstract
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.
- Inventors:
- Issue Date:
- OSTI Identifier:
- 7269057
- Patent Number(s):
- 4925488
- Application Number:
- PPN: US 7-079389
- Assignee:
- PTO; EDB-94-116002
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 30 Jul 1987
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; COPPER; MATERIALS RECOVERY; SCRAP METALS; CONCENTRATION RATIO; COPPER SULFIDES; EXTRACTION; CHALCOGENIDES; COPPER COMPOUNDS; ELEMENTS; MANAGEMENT; METALS; PROCESSING; SCRAP; 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
Citation Formats
Blander, M, and Sinha, S N. Removal of copper from ferrous scrap. United States: N. p., 1990.
Web.
Blander, M, & Sinha, S N. Removal of copper from ferrous scrap. United States.
Blander, M, and Sinha, S N. Tue .
"Removal of copper from ferrous scrap". United States.
@article{osti_7269057,
title = {Removal of copper from ferrous scrap},
author = {Blander, M and Sinha, S N},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {5}
}