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Indices of separation for binary systems

Following the segregation fraction Yy for nonisotopic systems, one can define the segregation fraction Yfj of an isotopic mixture as [Pg.25]

All three quantities, the mole fraction x,j, the mass fraction Uij and the atom fraction aip vary between the limits of 0 and 1. When their value is 1, we have pure species i in region j. The closer their value is to 1, the greater is the purity of the region (fraction or phase) in the ith species. [Pg.25]

On the other hand, the mole ratio Xy and the abundance ratio Xy vary between 0 and 00, the latter value indicating only pure species i in region j. Thus, the upper limits of the two sets of quantities xy, Uy, ay and Xy, X ) have radically different values, although all of these quantities indicate the level of purity of the ith species in the given /th region in their own ways. [Pg.25]

Sometimes the initial binary mixture to be separated is not a uniform mbcture as in vessel A, but instead has two regions whose compositions are characterized as Xif and Xif corresponding toy =/i,/2- Note that these regions are such that region/i usually has more of species 1, whereas region /2 has more of species 2. The total and ith component mass balances in such a case lead to 2 2 [Pg.25]

The simplest separation indices are the distribution ratio (or capacity factor) k y, the distribution coefficient iqi and the equilibrium ratio K(  [Pg.25]


See other pages where Indices of separation for binary systems is mentioned: [Pg.25]    [Pg.25]    [Pg.27]   


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