Authors:
Shekhar Kumar Reprocessing Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102 India

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D. Sivakumar Reprocessing Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102 India

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Bijendra Kumar Reprocessing Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102 India

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U. Kamachi Mudali Reprocessing Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102 India

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R. Natarajan Reprocessing Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102 India

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Abstract  

Miniature annular centrifugal contactors are nearly perfect for shielded hot-cell applications during flowsheet evaluation but these contactors require complex maintenance of electrical drive-motors during radioactive experiments. To reduce the number of electrical drives in the shielded cell, an indigenous design of miniature Taylor Couette (TC) mixing based countercurrent differential extraction column has been developed. In this paper, results of mass transfer experiments for an indigenously developed TC column with 30% TBP/aqueous nitric acid solutions are reported. The developed device worked perfectly in counter–current differential mode and demonstrated equivalence to multiple-extraction stages while working with a single electrical drive. The developed TC unit demonstrated operation with a reduced efficiency without flooding even in absence of rotor rotation. This observation is a vital step towards designing of robust contactors, which do not flood during temporary power failure or failure of drive mechanism.

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation
1968
Volumes
per Year
1
Issues
per Year
12
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)