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PUREX (plutonium uranium reduction extraction) is a chemical method used to purify fuel for nuclear reactors or nuclear weapons. [7] PUREX is the de facto standard aqueous nuclear reprocessing method for the recovery of uranium and plutonium from used nuclear fuel ( spent nuclear fuel , or irradiated nuclear fuel).
Reprocessing capacity (tHM/yr) Construction start date Operation date Closure Purpose Plant B Mayak Shut down 400 1948 1960's Military Plant BBRT-1 Mayak LWR PUREX: Operational 400 1978 Civil Tomsk-7 Radiochemical Tomsk Shut down 6000 1956 Military Krasnoyarsk-26 Zheleznogorsk: Shut down 3500 1964 2010 Military RT-2 Zheleznogorsk: VVER PUREX
The PUREX Plant, known as A Plant or Building 202‑A, commenced operation in 1955. Like the U Plant it used pulsed columns and tributyl phosphate as a solvent. [145] [146] The plant was 1,000 feet (300 m) long, 400 feet (120 m) high and 52 feet (16 m) wide. The processing canyon contained eleven processing areas.
Nuclear reprocessing is primarily done to remove undesirable parts of the spent fuel and either re-use the other parts or store them as waste. Reprocessed uranium for example, which is derived from spent fuel, usually has a higher uranium-235 content than natural uranium.
PUREX, the current standard method, is an acronym standing for Plutonium and Uranium Recovery by EXtraction. The PUREX process is a liquid-liquid extraction method used to reprocess spent nuclear fuel, to extract uranium and plutonium, independent of each other, from the fission products. This is the most developed and widely used process in ...
The Magnox Reprocessing Plant is a former nuclear reprocessing facility at Sellafield in northern England, which operated from 1964 to 2022. The plant used PUREX chemistry (based on tributyl phosphate (TBP)) to extract plutonium and uranium from used nuclear fuel originating primarily from Magnox reactors. [1]
a fuel fabrication plant, a 5 MWe experimental reactor producing power and district heating, a short-term spent fuel storage facility, a fuel reprocessing facility that recovers uranium and plutonium from spent fuel using the PUREX process.
The West Valley Demonstration Project is a nuclear waste remediation site in West Valley, New York in the U.S. state of New York.The project focuses on the cleanup and containment of radioactive waste left behind after the abandonment of a commercial nuclear fuel reprocessing plant in 1980. [1]