State-of-the-Art discussion on the solvent extraction reagents used for the recovery of copper from dilute sulfuric acid leach solutions

Conference · Thu Jan 01 04:00:00 EST 1987 · Sep. Sci. Technol.; (United States)

OSTI ID:6372541

Kordosky, G A; Olafson, S M; Lewis, R G; Deffner, V L; House, J E

The recovery of copper from dilute sulfuric acid leach solutions has been a commercial reality since 1968 (1), and since then the technology has gained worldwide acceptance. Only one chelating functionality, the hydroxy oxime group, has been used commercially for this task. There are, however, two distinct classes of extractants based on the hydroxy oxime group: the salicylaldoximes, which are very strong copper extractants and the ketoximes, which are moderate copper extractants. A third class of extractants combines a ketoxime with a salicylaldoxime in about a 1/1 mole ratio and results in some surprising advantages. This paper will discuss each reagent class, showing their advantages and disadvantages and will also introduce two new reagents, LIX 84 and LIX 984, showing their behavior with respect to copper extraction, and discussing where they may be used to advantage.

• Research Organization: Henkel Corp., Tucson, AZ
• OSTI ID: 6372541
• Report Number(s): CONF-851011-
• Conference Information: Journal Name: Sep. Sci. Technol.; (United States) Journal Volume: 22:2/3
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
AMINES
CHELATING AGENTS
COPPER
DISPERSIONS
ELEMENTS
EXTRACTION
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INORGANIC ACIDS
MANAGEMENT
MATERIALS RECOVERY
METALS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIMES
PROCESSING
RECOVERY
SEPARATION PROCESSES
SOLUTIONS
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SOLVENTS
SULFURIC ACID
TECHNOLOGY ASSESSMENT
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING