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Conference Spotlight
2025 ANS Winter Conference & Expo
November 8–12, 2025
Washington, DC|Washington Hilton
Standards Program
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
Japan gets new U for enrichment as global power and fuel plans grow
President Trump is in Japan today, with a visit with new Prime Minister Sanae Takaichi on the agenda. Takaichi, who took office just last week as Japan’s first female prime minister, has already spoken in favor of nuclear energy and of accelerating the restart of Japan’s long-shuttered power reactors, as Reuters and others have reported. Much of the uranium to power those reactors will be enriched at Japan’s lone enrichment facility—part of Japan Nuclear Fuel Ltd.’s Rokkasho fuel complex—which accepted its first delivery of fresh uranium hexafluoride (UF₆) in 11 years earlier this month.
T. A. Gens
Nuclear Science and Engineering | Volume 9 | Number 4 | April 1961 | Pages 488-494
Technical Paper | doi.org/10.13182/NSE61-A25912
Articles are hosted by Taylor and Francis Online.
Processes for dissolving uranium-zirconium and uranium-zirconium-niobium alloy fuels in ammonium fluoride solutions (Modified Zirflex processes) were developed in the laboratory. A non-aqueous process (Zircex process), in which high-zirconium alloys are hydrochlorinated at about 600°C, offers the possibility of zirconium separation prior to solvent extraction. Dissolvents consisting of mixtures of hydrofluoric acid and hydrogen peroxide or hydrofluoric acid, nitric acid, and aluminum nitrate are also attractive, but corrosion rates with common construction materials have proven excessively high at over 20 mils per month.
