Film diffusion-controlled kinetics in binary ion exchange

Thomas G. Smith; Joshua S Dranoff

doi:10.1021/i160011a003

Film diffusion-controlled kinetics in binary ion exchange

Thomas G. Smith, Joshua S Dranoff

Chemical and Biological Engineering

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

The rate of exchange of H+ and Na+ ions with Dowex 50 resin was studied in dilute solutions. A batch reactor with a built-in electrical conductivity cell was used to obtain data in the region of external film diffusion control. The experimental data were compared with predictions based on the use of the Nernst-Planck equations to describe the diffusional process. The results indicate the general validity of the approach, but additional work will be required before truly quantitative agreement of theory and experiment is possible.

Original language	English (US)
Pages (from-to)	195-200
Number of pages	6
Journal	Industrial and Engineering Chemistry Fundamentals
Volume	3
Issue number	3
DOIs	https://doi.org/10.1021/i160011a003
State	Published - Aug 1 1964

ASJC Scopus subject areas

Engineering(all)

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10.1021/i160011a003

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abstract = "The rate of exchange of H+ and Na+ ions with Dowex 50 resin was studied in dilute solutions. A batch reactor with a built-in electrical conductivity cell was used to obtain data in the region of external film diffusion control. The experimental data were compared with predictions based on the use of the Nernst-Planck equations to describe the diffusional process. The results indicate the general validity of the approach, but additional work will be required before truly quantitative agreement of theory and experiment is possible.",

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AB - The rate of exchange of H+ and Na+ ions with Dowex 50 resin was studied in dilute solutions. A batch reactor with a built-in electrical conductivity cell was used to obtain data in the region of external film diffusion control. The experimental data were compared with predictions based on the use of the Nernst-Planck equations to describe the diffusional process. The results indicate the general validity of the approach, but additional work will be required before truly quantitative agreement of theory and experiment is possible.

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Film diffusion-controlled kinetics in binary ion exchange

Abstract

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