When ion-exchange takes place in the presence of a co-ion which reacts with one of the ions being exchanged, the rate of such an exchange is affected by the reaction. Equations are derived for the general situation and are applied to the H+/Na+-acetate-system. Limiting examples are illustrated. Usin
Liquid-side mass transfer coefficients in ion exchange—the H+/Cu++-Cl− system
✍ Scribed by J.C.R. Turner; C.B. Snowdon
- Publisher
- Elsevier Science
- Year
- 1968
- Tongue
- English
- Weight
- 385 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0009-2509
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✦ Synopsis
This paper examines the application of Nemst-Planck theory to the liquid side ionexchange mass transfer coefficient where the ions being exchanged do not have the same valency. The theoretical results are applied to the case of H+/Cu++ exchange between dilute aqueous chloride solutions and Zeo-Karb 225 cation exchange resin. Experimental measurements with this system are in good accord with theory and the results for H+/Na+ exchange.
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## NOTATION vibrational amplitude of ultrasonic horn, m velocity of sound in water, m/s cavitation number as defined in Fig. 2 vibrational frequency of an oscillating bubble or ultrasonic horn, Hz energy intensity as defined in eq. ( 2), W/m2 fluid pressure further downstream of the throttled valv