Arup K. Sengupra, Yizhak Marcus's Ion Exchange & Solvent Extraction, Volume 15 (Ion Exchange PDF

By Arup K. Sengupra, Yizhak Marcus

ISBN-10: 0585404224

ISBN-13: 9780585404226

ISBN-10: 0824706013

ISBN-13: 9780824706012

"Contains a whole handbook with techniques for the implementation and scaling-up of business extraction approaches. Discusses computer-aided molecular layout. comprises examples of interactive, combinatorial, construct-and-test, and mathematical programming."

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Extra info for Ion Exchange & Solvent Extraction, Volume 15 (Ion Exchange and Solvent Extraction)

Sample text

Iii. Difference in Density of the Phases: Usually the larger the better. In the rather rare case of very dense liquids, like dibromomethane, which has a density above 2 g/cm3, extra mixing is needed to ensure good phase contact. 05 g/cm3. Interfacial Tension: Any value between 5 and 25 mN/m should give good drop breakage and coalescence. With higher interfacial tension, the drops tend to be stable and not to break. With lower interfacial tension they do not coalesce. The minimum recommended interfacial tension for mixer-settlers or columns is 2 mN/m [6].

A project engineer will take over at this stage, keeping you as a consultant. V. PHYSICAL, HYDRODYNAMIC, AND KINETIC DATA By now you have ruled out most of your options. You have typically one or two solvents to consider, and maybe have still to determine the concentration of the extractant and the choice of the diluent or the modifier. But you have 34 Grinbaum a great deal of relevant data. You watched the phase separation in your equilibrium experiments and probably have some feeling for how the setup works at various concentrations.

If the process will be carried out below 50ЊC, this may be determined at ambient temperature just as well. Remark For composite solvents, steps 2 and 3 should be repeated for various diluents, modifiers, and different concentrations of the extractant. Usually it is enough to interpolate between all the measured properties at the minimal and maximal expected concentrations of the extractant and the modifier. 4. Compare the data among themselves and relative to other processes that you have encountered.

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Ion Exchange & Solvent Extraction, Volume 15 (Ion Exchange and Solvent Extraction) by Arup K. Sengupra, Yizhak Marcus


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