Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals
Abstract
A process for extracting transition metals and particularly cobalt and manganese together with iron, copper and nickel from low grade ores (including ocean-floor nodules) by converting the metal oxides or other compositions to chlorides in a molten salt, and subsequently using a combination of selective distillation at temperatures below about 500/degree/C, electrolysis at a voltage not more negative that about /minus/1.5 volt versus Ag/AgCl, and precipitation to separate the desired manganese and cobalt salts from other metals and provide cobalt and manganese in metallic forms or compositions from which these metals may be more easily recovered.
- Inventors:
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 6723651
- Patent Number(s):
- 6044618
- Assignee:
- ANL; ERA-14-001183; EDB-88-185224
- Patent Classifications (CPCs):
-
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61D - VETERINARY INSTRUMENTS, IMPLEMENTS, TOOLS, OR METHODS
B - PERFORMING OPERATIONS B65 - CONVEYING B65B - MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 58 GEOSCIENCES; COBALT; SEPARATION PROCESSES; COPPER; IRON; MANGANESE; ORES; MATERIALS RECOVERY; CHLORIDES; DISTILLATION; ELECTROLYSIS; EXTRACTION; NICKEL; PRECIPITATION; SALTS; CHLORINE COMPOUNDS; ELEMENTS; HALIDES; HALOGEN COMPOUNDS; LYSIS; MANAGEMENT; METALS; PROCESSING; RECOVERY; TRANSITION ELEMENTS; WASTE MANAGEMENT; WASTE PROCESSING; 400105* - Separation Procedures; 580300 - Mineralogy, Petrology, & Rock Mechanics- (-1989)
Citation Formats
Maroni, V A, and von Winbush, S. Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals. United States: N. p., 1987.
Web.
Maroni, V A, & von Winbush, S. Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals. United States.
Maroni, V A, and von Winbush, S. Fri .
"Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals". United States.
@article{osti_6723651,
title = {Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals},
author = {Maroni, V A and von Winbush, S},
abstractNote = {A process for extracting transition metals and particularly cobalt and manganese together with iron, copper and nickel from low grade ores (including ocean-floor nodules) by converting the metal oxides or other compositions to chlorides in a molten salt, and subsequently using a combination of selective distillation at temperatures below about 500/degree/C, electrolysis at a voltage not more negative that about /minus/1.5 volt versus Ag/AgCl, and precipitation to separate the desired manganese and cobalt salts from other metals and provide cobalt and manganese in metallic forms or compositions from which these metals may be more easily recovered.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri May 01 00:00:00 EDT 1987},
month = {Fri May 01 00:00:00 EDT 1987}
}
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