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 than about -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:
-
- Naperville, IL
- Huntington, NY
- Issue Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- OSTI Identifier:
- 866674
- Patent Number(s):
- 4762694
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C01 - INORGANIC CHEMISTRY C01G - COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- molten; salt; extraction; process; recovery; valued; transition; metals; land-based; deep-sea; minerals; extracting; particularly; cobalt; manganese; iron; copper; nickel; grade; ores; including; ocean-floor; nodules; converting; metal; oxides; compositions; chlorides; subsequently; combination; selective; distillation; temperatures; below; 500; degree; electrolysis; voltage; negative; -1; volt; versus; agcl; precipitation; separate; desired; salts; provide; metallic; forms; easily; recovered; temperatures below; extraction process; transition metals; metal oxide; molten salt; transition metal; metal oxides; salt extraction; metallic forms; /423/75/205/
Citation Formats
Maroni, Victor A, and von Winbush, Samuel. Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals. United States: N. p., 1988.
Web.
Maroni, Victor A, & von Winbush, Samuel. Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals. United States.
Maroni, Victor A, and von Winbush, Samuel. Fri .
"Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals". United States. https://www.osti.gov/servlets/purl/866674.
@article{osti_866674,
title = {Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals},
author = {Maroni, Victor A and von Winbush, Samuel},
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 than about -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 Jan 01 00:00:00 EST 1988},
month = {Fri Jan 01 00:00:00 EST 1988}
}
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