Authors:
K. Ogiwara Sophia University Department of Chemistry 7-1 Kioicho, Chiyodaku 102 Tokyo (Japan)

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T. Oi Sophia University Department of Chemistry 7-1 Kioicho, Chiyodaku 102 Tokyo (Japan)

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T. Ossaka Sophia University Department of Chemistry 7-1 Kioicho, Chiyodaku 102 Tokyo (Japan)

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M. Mukaida Sophia University Department of Chemistry 7-1 Kioicho, Chiyodaku 102 Tokyo (Japan)

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T. Honda Musashi Institute of Technology Atomic Energy Research Laboratory 971 Ozenji, Asaoku 215 Kawasakishi, Kanagawa (Japan)

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Abstract  

Uranium and thorium contents of solar salts were measured by neutron activation analysis. In advance of neutron irradiation, U and Th were concentrated and separated from some interfering elements by neutralization in which they were precipitated with aluminium hydroxide from solutions obtained by dissolving the salts in water or dilute nitric acid solution. The uranium and thorium concentrations determined were from several hundred ppt to 10 ppb. It was strongly indicated that uranium tends to remain in the solution (brine from seawater) phase in the process of solar salt production while thorium tends to transfer to the solid (solar salt) phase.

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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)