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Title: Method for extracting copper, silver and related metals

Abstract

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.

Inventors:
 [1];  [2]
  1. Oak Ridge, TN
  2. Knoxville, TN
Issue Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
867393
Patent Number(s):
4927610
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C22 - METALLURGY C22B - PRODUCTION AND REFINING OF METALS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; extracting; copper; silver; related; metals; process; selectively; precious; gold; concurrent; extraction; aqueous; solutions; containing; utilizes; tetrathiamacrocycles; molecular; weight; organic; acids; exhibit; synergistic; relationship; complexing; metal; removing; leach; selectively extracting; process utilizes; aqueous solution; molecular weight; aqueous solutions; solutions containing; organic acids; organic acid; weight organic; selectively extract; precious metals; /423/210/

Citation Formats

Moyer, Bruce A, and McDowell, W J. Method for extracting copper, silver and related metals. United States: N. p., 1990. Web.
Moyer, Bruce A, & McDowell, W J. Method for extracting copper, silver and related metals. United States.
Moyer, Bruce A, and McDowell, W J. Mon . "Method for extracting copper, silver and related metals". United States. https://www.osti.gov/servlets/purl/867393.
@article{osti_867393,
title = {Method for extracting copper, silver and related metals},
author = {Moyer, Bruce A and McDowell, W J},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}