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I'm inferring from this that their current plan is to import lithium-7, from either Russia or China? - "The Kairos Power fluoride-salt-cooled, high-temperature
by perihelions 2y ago
I'm inferring from this that their current plan is to import lithium-7, from either Russia or China?
- "The Kairos Power fluoride-salt-cooled, high-temperature reactor requires highly enriched lithium-7 to support operations. The high enrichment requirements complicate quality and process control due to lack of qualified standards and instrumentation capable of meeting the required precision and accuracy. Currently, enrichment [sic] of 99.95% 7Li is imported to the U.S. in limited quantities."
https://gain.inl.gov/content/uploads/4/2023/10/KairosPower_Abstract_23-3.pdf https://gain.inl.gov/content/uploads/4/2023/10/KairosPower_A...
- "Due to environmental concerns and relatively low demand for enriched lithium, further use of the COLEX process is officially banned in the USA since 1963, which strengthens China’s near unanimous [sic] hold over the market of enriched lithium, followed by Russia.[7]. [...]Although US nuclear industry relies heavily on Chinese and Russian enriched lithium, ecological concerns over the process may impede its future domestic use at industrial scale."
https://en.wikipedia.org/wiki/COLEX_process#COLEX_separation_facilities_in_the_world https://en.wikipedia.org/wiki/COLEX_process#COLEX_separation...
(Tangentially, the Chinese FLiBe reactor also uses enriched lithium-7, so I guess they're self-sufficient in that, as both supplier and consumer).
https://en.wikipedia.org/wiki/TMSR-LF1 https://en.wikipedia.org/wiki/TMSR-LF1
edit: Found an additional reference,
https://www.gao.gov/products/gao-13-716 https://www.gao.gov/products/gao-13-716 ("Managing Critical Isotopes: Stewardship of Lithium-7 Is Needed to Ensure a Stable Supply" (2013))
- pfdietz 2y ago> Currently, enrichment [sic] of 99.95% 7Li is imported to the U.S. in limited quantities." I believe this is referring to rather small quantities (kilograms) imported for pH control in light water reactors.
- perihelions 2y agoRight–that's the topic of the GAO report I found. Total US demand of about 300 kg/year of lithium-7, for [⁷Li]OH. They specifically call out the FLiBe molten-salt reactors because they need orders of magnitude more lithium-7; they worried (as of 2013) the Chinese MSR could cause a supply crunch that would affect US PWR's.