Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ib metal
Patent
1988-07-01
1990-05-22
Stoll, Robert L.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ib metal
423DIG14, 210688, 210912, B01D 1100
Patent
active
049276107
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.
REFERENCES:
patent: 3966766 (1976-06-01), Lehn
patent: 4156683 (1979-05-01), Lehn
Ritcey et al., "Solvent Extraction, Principles and Applications to Process Metallurgy", Elsevier Scientific Publishing Company, Amsterdam-Oxford-New York, 1979.
McDowell W. J.
Moyer Bruce A.
Hamel Stephen D.
Lovingood Katherine P.
Moser William R.
Stoll Robert L.
The United States of America as represented by the United States
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