PUREX Extraction

Extraction (PUREX) liquid-liquid extraction process, 19 674-675 25 420. See also PUREX flow sheet Plutonyl nitrate hexahydrate, 19 691 Plywood, 26 752... [Pg.719]

PAH PAN PBN PCT PES PHREEQC PIC PM PMATCHC PM-10 PM-2.5 PRB PUREX PW PWR PZC Polycyclic aromatic hydrocarbon Peroxyacetylnitrate Peroxybenzoylnitrate Product consistency test Plasma emission spectroscopy pH redox equilibrium calculations (computer program) Product of incomplete combustion Particulate matter Program to manage thermochemical data, written in C++ Particulate matter with an aerodynamic diameter <10 p,m Particulate matter with an aerodynamic diameter <2.5 p,m Powder River Basin Pu-U-recovery-extraction Purex waste Pressurized water reactor Point of zero charge... [Pg.685]

It is used in the mining industry to recover metals such as copper and nickel. Parasite plants, based on solvent extraction, are used in the phosphate industry to recover by-product uranium from crude phosphoric acid. The uranium concentration in phosphoric acid is very low but, because of the high volume of phosphoric acid that is produced to meet agricultural needs, considerable uranium can be recovered using solvent extraction. In the nuclear industry [5], solvent extraction is used to purify uranium and plutonium [using the plutonium and uranium recovery by extraction (PUREX) process], zirconium from hafnium, and for many other applications. It is also used in environmental applications to clean soil, say, to remove polychlorinated biphenyls (PCBs), dioxins, pesticides, and other hazardous pollutants. [Pg.711]

Naptbol, l-(2-carboxyphenyla2o)-chromium complex geometrical isomerism, 68 Neptunium breeder reactor fuels Purex process, 955 reprocessing, 954 electrolytic reduction Purex process, 949 environmental chemistry, 961 extraction Purex process, 951 Purex process, 946,950 recovery... [Pg.7204]

Some countries, e.g., France, Japan, Russia, and the United Kingdom have chosen to reprocess their spent nuclear fuel to recycle uranium and plutonium as nuclear fuel and to obtain a high active waste (HAW) firaction that is less radiotoxic than the spent fuel itself. In this process, very high separation factors are necessary. The fission product activity has to be reduced by a factor of > 10 and the separation factor between uranium and plutonium must be at least 2 x lO. All full-scale reprocessing processes are based on solvent extraction, and today the plutonium uranium redox extraction (PUREX) process dominates the market completely. [Pg.2423]

Temporary storage was originally planned for no more than 3 years, until the fuel could be processed at the Plutonium-Uranium Extraction (PUREX) Plant. [Pg.290]

In the case of a fast neutron spectrum, MOX fuel has been proposed by Oka et al. (2010) with an average concentration of fissile plutonium of approximately 20%. Such fuel can be produced from recycling spent fuel of LWRs with the Plutonium Uranium Redox Extraction (PUREX) process, a mature fuel cycle technology. [Pg.198]