Method for extracting copper, silver and related metals
Patent
·
OSTI ID:6654956
This patent describes a process for selectively extracting precious metal such as silver and gold concurrent with copper extraction from aqueous solutions containing the same. The process utilizes tetrathiamacrocycles and high molecular weight organic acids that exhibit a synergistic relationship when complexing with certain metal ions thereby removing them from ore leach solutions.
- Assignee:
- Dept. of Energy, Washington, DC (USA)
- Patent Number(s):
- US 4927610; A
- Application Number:
- PPN: US 7-214814A
- OSTI ID:
- 6654956
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
COPPER
DEMETALLIZATION
DISPERSIONS
DISSOLUTION
ELEMENTS
GOLD
LEACHING
METALS
MIXTURES
ORE PROCESSING
ORGANIC ACIDS
ORGANIC COMPOUNDS
PROCESSING
RECOVERY
SEPARATION PROCESSES
SILVER
SLURRIES
SUSPENSIONS
TRANSITION ELEMENTS
360101 -- Metals & Alloys-- Preparation & Fabrication
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
COPPER
DEMETALLIZATION
DISPERSIONS
DISSOLUTION
ELEMENTS
GOLD
LEACHING
METALS
MIXTURES
ORE PROCESSING
ORGANIC ACIDS
ORGANIC COMPOUNDS
PROCESSING
RECOVERY
SEPARATION PROCESSES
SILVER
SLURRIES
SUSPENSIONS
TRANSITION ELEMENTS