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Title: 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:
 [1];  [2]
  1. (Naperville, IL)
  2. (Huntington, NY)
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL
OSTI Identifier:
866674
Patent Number(s):
4762694
Assignee:
United States of America as represented by United States (Washington, DC) ANL
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 = {1988},
month = {1}
}

Patent:

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