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Method for extracting copper, silver and related metals

Patent ·
OSTI ID:5676289
;

A process for selectively extracting precious metals 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.

Research Organization:
Oak Ridge National Lab., TN (USA)
DOE Contract Number:
AC05-84OR21400
Assignee:
TIC; EDB-88-185223
Patent Number(s):
A US 6-111490; PATENTS-US-A6111490
Application Number:
ON: DE89000204
OSTI ID:
5676289
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
AFFINITY
AQUEOUS SOLUTIONS
COMPLEXES
COPPER
DISPERSIONS
DISSOLUTION
ELEMENTS
EXTRACTION
GOLD
INVENTIONS
ION EXCHANGE MATERIALS
LEACHATES
LEACHING
MATERIALS
METALS
MIXTURES
ORES
ORGANIC COMPOUNDS
ORGANIC ION EXCHANGERS
ORGANIC SULFUR COMPOUNDS
SEPARATION PROCESSES
SILVER
SOLUTIONS
SOLVENT EXTRACTION
SOLVENT PROPERTIES
TRANSITION ELEMENTS