Coupled transport of Zr(IV) through tri-n-butylphosphate-xylene-based supported liquid membranes

Journal Article · Thu Nov 30 23:00:00 EST 1989 · Separation Science and Technology; (USA)

DOI:https://doi.org/10.1080/01496398908050652· OSTI ID:6011636

Chaudry, M A; Malik, M T; Hussain, K ^[1]

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1. Pakistan Institute of Nuclear Science and Technology, Islamabad (Pakistan)

The transport of Zr(IV) through tri-n-butylphosphate-xylene-based liquid membranes, supported in a polypropylene hydrophobic microporous film, has been studied. The concentration of HNO{sub 3} in the feed solution and tri-n-butylphosphate (TBP) carrier in the membrane were varied, and the flux and permeability coefficients were determined. The optimum conditions found for maximum flux were determined to be 10 mol/dm{sup 3} HNO{sub 3} and 2.93 mol/dm{sup 3} TBP with a flux value of 12.9 {times} 10{sup {minus}6} mol {center dot} m{sup {minus}2} {center dot} s{sup {minus}1}. The solvent extraction study revealed that 1.25 to 3.5 protons are involved in zirconium transport, and that two molecules of TBP are involved in the complex formation. The value of protons involved varies with acid concentration. The zirconium ion transport is coupled with nitrate ions transport.

• OSTI ID: 6011636
• Journal Information: Separation Science and Technology; (USA), Journal Name: Separation Science and Technology; (USA) Vol. 24:15; ISSN 0149-6395; ISSN SSTED
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105* -- Separation Procedures
DATA
ELEMENTS
EXPERIMENTAL DATA
EXTRACTION
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
MEMBRANES
METALS
NITRIC ACID
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYMERS
POLYOLEFINS
POLYPROPYLENE
SEPARATION PROCESSES
SOLVENT EXTRACTION
SUPPORTED LIQUID MEMBRANES
TRANSITION ELEMENTS
ZIRCONIUM