Microemulsion liquid membranes. II. Copper ion removal from buffered and unbuffered aqueous feed

Journal Article · Tue Sep 01 04:00:00 EDT 1992 · Separation Science and Technology; (United States)

DOI:https://doi.org/10.1080/01496399208019433· OSTI ID:7020136

Wiencek, J M; Qutubuddin, S ^[1]

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1. Case Western Reserve Univ., Cleveland, OH (United States)

A separation technique utilizing nonionic microemulsions as emulsion liquid membranes has been successfully applied to the removal of copper ion from both buffered and unbuffered aqueous feed. The reversible phase behavior of the microemulsion was utilized to demulsify the liquid membrane phase and recover the copper ion via a temperature change of approximately 40 C. Material balances closed to within 15%. Benzoylacetone posed no special problems when employed as a complexing reagent in buffered media but was not effective for copper removal from unbuffered solution. LIX 860 was found to be effective in unbuffered media if it was present in concentrations equal to or greater than the stabilizing surfactant.

• OSTI ID: 7020136
• Journal Information: Separation Science and Technology; (United States), Journal Name: Separation Science and Technology; (United States) Vol. 27:11; ISSN SSTED; ISSN 0149-6395
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
AQUEOUS SOLUTIONS
COLLOIDS
COMPLEXES
COPPER
DATA
DISPERSIONS
ELEMENTS
EMULSIONS
EXPERIMENTAL DATA
HYDROGEN COMPOUNDS
INFORMATION
KINETICS
LIQUID WASTES
MATERIAL BALANCE
MEMBRANES
METALS
MICROEMULSIONS
MIXING
MIXTURES
NUMERICAL DATA
OXYGEN COMPOUNDS
PHASE STUDIES
QUANTITY RATIO
REMOVAL
SOLUTIONS
SUPPORTED LIQUID MEMBRANES
SURFACTANTS
TECHNOLOGY ASSESSMENT
TRANSITION ELEMENTS
WASTE WATER
WASTES
WATER