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Flowsheets uranium purification

Figure 13 Outline flowsheets for uranium purification using the DPPA, DAPEX or AMEX processes51... Figure 13 Outline flowsheets for uranium purification using the DPPA, DAPEX or AMEX processes51...
Many variants of the Purex (Plutonium Uranium Reduction Extraction) process23S based on TBP extraction have been developed but a basic outline flowsheet is illustrated in Figure 38. This shows the so-called early split flowsheet most commonly used in existing plants. It involves the separation of the uranium and plutonium using two different back-extractant streams during the first solvent extraction cycle. Additional solvent extraction cycles are then carried out independently on the uranium and plutonium streams to effect further purification. An alternative arrangement is the iate split flowsheet used at the Cap La Hague plant in France, and the... [Pg.939]

Qualitative flowsheets are given for the extraction and purification of all the rare metals discussed in earlier chapters. As far as possible the examples chosen are typical of current practice or of recently proposed processes. Each flowsheet presented begins with a mineral ore and ends with a pure metal, whereas in practice the various component operations are sometimes divided between two or more plants e.g. in the case of uranium, it is convenient to produce a concentrate containing about 70 per cent of the element near the minefield and to ship this to various refineries many thousands of miles away. Metal production may take place at the refinery, or in yet a third factory in association with subsequent metallurgical stages. [Pg.314]


See other pages where Flowsheets uranium purification is mentioned: [Pg.911]    [Pg.954]    [Pg.911]    [Pg.954]    [Pg.277]    [Pg.397]    [Pg.7056]    [Pg.7099]    [Pg.333]   
See also in sourсe #XX -- [ Pg.556 ]




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