Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals

Patent · Fri May 01 00:00:00 EDT 1987

OSTI ID:6723651

Maroni, V A; von Winbush, S

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.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31109-ENG-38
• Assignee: ANL; ERA-14-001183; EDB-88-185224
• Patent Number(s): PATENTS-US-A6044618
• OSTI ID: 6723651
• Resource Relation: Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

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
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