Method for extracting copper, silver and related metals

Patent · Tue May 22 00:00:00 EDT 1990

OSTI ID:6654956

Moyer, B A; McDowell, W J

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
• Resource Relation: Patent File Date: 1 Jul 1988
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
SLURRIES
DEMETALLIZATION
COPPER
GOLD
LEACHING
ORE PROCESSING
ORGANIC ACIDS
RECOVERY
SILVER
DISPERSIONS
DISSOLUTION
ELEMENTS
METALS
MIXTURES
ORGANIC COMPOUNDS
PROCESSING
SEPARATION PROCESSES
SUSPENSIONS
TRANSITION ELEMENTS
400105* - Separation Procedures
360101 - Metals & Alloys- Preparation & Fabrication