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Conference Spotlight
2025 ANS Winter Conference & Expo
November 8–12, 2025
Washington, DC|Washington Hilton
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Latest News
White House taps Douglas Weaver for NRC role
The Trump White House has nominated seasoned nuclear regulatory expert Douglas Weaver for a commissioner seat on the Nuclear Regulatory Commission. If confirmed, Weaver would fill the seat vacated by NRC commissioner Annie Caputo, who resigned in July.
Weaver’s nomination was sent earlier today to the Senate Environment and Public Works Committee. If confirmed, he would finish the remainder of Caputo’s term, which expires June 30, 2026.
K. Wolfsberg, W. R. Daniels, G. P. Ford, E. T. Hitchcock
Nuclear Technology | Volume 3 | Number 9 | September 1967 | Pages 568-574
Technical Paper and Note | doi.org/10.13182/NT67-A27941
Articles are hosted by Taylor and Francis Online.
The study of heavy elements produced in underground thermonuclear explosions requires the separation of trace quantities of actinide elements from several hundred to several thousand grams of fused rock containing the products from about 1017 fissions. After the sample is pulverized and dissolved in HNO3, HClO4, and HF, fluoride insoluble salts are precipitated. These are redissolved, and the actinides and lanthanides are extracted into tributyl phosphate from a solution that is highly salted with Al(NO3)3. The actinides and lanthanides are back-extracted intc water and then extracted into di-2-ethylhexyl phosphoric acid. Recovery from di-2-ethylhexyl phosphoric acid is achieved by esterification with decanol. The actinides are separated from the lanthanides by elution from a cation-exchange resin column with an ethanol-hydrochloric acid solution. Individual actinides are separated by elution from a cation-exchange resin column with α-hydroxyisobutyric acid.
