Kinetic and thermodynamic separation of Cu(II) and Fe(III) by liquid-liquid extraction with a. beta. -hydroxy-oxime in toluene

Journal Article · Thu Jan 01 00:00:00 EST 1981 · Sep. Sci. Technol.; (United States)

DOI:https://doi.org/10.1080/01496398108057606· OSTI ID:6263694

Chiarizia, R; Danesi, P R

A quantitative study of the thermodynamic and kinetic separation of Cu(III) and Fe(III) by liquid-liquid extraction with toluene solutions of the oxime 2-hydroxy-5-t-octyl(acetophenone oxime) has been conducted. On the basis of the stoichiometry, equilibrium constants, rate laws and rate constants of the extraction reactions of Cu(II) and Fe(III) an equation has been derived which describes how the separation of Cu from Fe varies with the chemical composition of the system, the hydrodynamics of the extracting apparatus and the contact time between the aqueous and the organic phases. Our results show that separations which are not feasible thermodynamically are possible when the contact time between the two phases is kept much shorter than that required to reach equilibrium. 4 figures.

• Research Organization: Argonne National Lab., IL
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 6263694
• Journal Information: Sep. Sci. Technol.; (United States), Vol. 16:9
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COPPER
SOLVENT EXTRACTION
IRON
CHEMICAL REACTION KINETICS
EQUILIBRIUM
HYDRODYNAMICS
OXIMES
THERMODYNAMICS
TOLUENE
AMINES
AROMATICS
ELEMENTS
EXTRACTION
FLUID MECHANICS
HYDROCARBONS
HYDROXY COMPOUNDS
KINETICS
MECHANICS
METALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
REACTION KINETICS
SEPARATION PROCESSES
TRANSITION ELEMENTS
400105* - Separation Procedures