Irrelevance of phase size in purification
Recently, Reis has suggested that it might be possible to remove a solute species completely from a small (or finely dispersed) phase by a reduction to some low but finite value of the chemical potential of that species in the medium surrounding the phase. Sciamanna and Prausnitz, while expressing some doubts about the rigor of the theoretical approach, used similar arguments to examine the possibility of obtaining ultrapurity in a small dispersed phase by equilibrium purification operations such as distillation and extraction. Here they demonstrate that Reis' original suggestion is incorrect. Furthermore, they show that, under well-defined and reasonable assumptions, the size of a phase has no influence on its purity.
- Research Organization:
- Lawrence Berkeley Lab., CA (USA)
- DOE Contract Number:
- AC03-76SF00098
- OSTI ID:
- 6335044
- Journal Information:
- J. Phys. Chem.; (United States), Vol. 92:22
- Country of Publication:
- United States
- Language:
- English
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