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Method for extracting copper, silver and related metals

Patent ·
OSTI ID:867393
 [1];  [2]
  1. Oak Ridge, TN
  2. Knoxville, TN
+ Show Author Affiliations

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 Laboratory (ORNL), Oak Ridge, TN
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4927610
OSTI ID:
867393
Country of Publication:
United States
Language:
English

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Related Subjects

/423/210/
acids
aqueous
aqueous solution
aqueous solutions
complexing
concurrent
containing
copper
exhibit
extracting
extraction
gold
leach
metal
metals
method
molecular
molecular weight
organic
organic acid
organic acids
precious
precious metals
process
process utilizes
related
relationship
removing
selectively
selectively extract
selectively extracting
silver
solutions
solutions containing
synergistic
tetrathiamacrocycles
utilizes
weight
weight organic