Transport of samarium(III) and uranium(VI) across a silicone-supported liquid membrane using di(2-ethylhexyl)phosphoric acid and tributyl phosphate as mobile carriers

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Separation Science and Technology; (United States)

DOI:https://doi.org/10.1080/01496399408002477· OSTI ID:5156321

Gill, J S; Marwah, U R; Misra, B M ^[1]

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1. Bhabha Atomic Research Centre, Bombay (India)

Transport of actinides and lanthanides from dilute acidic solutions through silicone membranes prepared in this laboratory was studied using di(2-ethylhexyl)phosphoric acid (D2EHPA) and tributyl phosphate (TBP) as mobile carriers. It was found that transport of uranyl and samarium ions increased with an increase in carrier concentration dissolved in kerosene in the membrane phase. However, the metal ion flux was optimum at 1 M D2EHPA and 30% (v/v) of TBP, after which it decreased. It was also observed that the higher nitrate ions concentration in the feed enhanced the transport of U (VI) species with TBP carrier. In general, the performance of our silicone membrane compares well with those of other extensively used supported membranes, such as polypropylene and PTFE. 16 refs., 6 figs., 4 tabs.

• OSTI ID: 5156321
• Journal Information: Separation Science and Technology; (United States), Journal Name: Separation Science and Technology; (United States) Vol. 29:2; ISSN 0149-6395; ISSN SSTEDS
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400105* -- Separation Procedures
400702 -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
BUTYL PHOSPHATES
CHARGED PARTICLES
CHARGED-PARTICLE TRANSPORT
COMPILED DATA
DATA
DISTILLATES
ENERGY SOURCES
ESTERS
FOSSIL FUELS
FUELS
GAS OILS
INFORMATION
IONS
KEROSENE
LIQUID FUELS
MEMBRANES
NITRATES
NITROGEN COMPOUNDS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC PHOSPHORUS COMPOUNDS
ORGANIC SILICON COMPOUNDS
OXYGEN COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PHOSPHORIC ACID ESTERS
PHOSPHORUS COMPOUNDS
POLYMERS
RADIATION TRANSPORT
SAMARIUM IONS
SEPARATION PROCESSES
SILICONES
SILOXANES
SUPPORTED LIQUID MEMBRANES
TBP
URANIUM IONS