Document Detail


New apparatus for liquid-liquid extraction, "emulsion flow" extractor.
MedLine Citation:
PMID:  21321440     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A simple and low-cost apparatus for continuous and efficient liquid-liquid extraction, which does not need continual mechanical forces (stirring, shaking, etc.) other than solution sending, has newly been developed. This apparatus, named "emulsion flow" extractor, is composed of a column part where an emulsified state fluid flow (emulsion flow) is generated by spraying micrometer-sized droplets of an aqueous phase into an organic phase and a phase-separating part where the emulsion flow is destabilized by means of a sudden decrease in its vertical liner velocity due to a drastic increase in cross-section area of the emulsion flow passing through. In the present study, the performance of a desktop emulsion flow extractor in the extraction of Yb(III) and U(VI) from aqueous HNO(3) solutions into isooctane containing bis(2-ethylhexyl) phosphoric acid (D2EHPA) was evaluated. The mixing efficiency of the emulsion flow extractor was found to be comparable with that of a popular liquid-liquid extractor, mixer-settler. Moreover, the emulsion flow extractor proved to have an overwhelming advantage in terms of phase-separating ability.
Authors:
Nobuyuki Yanase; Hirochika Naganawa; Tetsushi Nagano; Junji Noro
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Analytical sciences : the international journal of the Japan Society for Analytical Chemistry     Volume:  27     ISSN:  1348-2246     ISO Abbreviation:  Anal Sci     Publication Date:  2011  
Date Detail:
Created Date:  2011-02-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8511078     Medline TA:  Anal Sci     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  171     Citation Subset:  IM    
Affiliation:
Nuclear Science and Engineering Directorate, Japan Atomic Energy Agency.
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