Published June 1977
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Study of gaseous iodine absorption in water and aqueous solutions of sodium hydroxyde
Description
Experiments were done in an agitated vessel containing the solution at its bottom; gaseous iodine was flowing above the liquid surface. Study of absorption rate versus gaseous iodine concentration, product concentrations in solution, gaseous flow rate, stirring rate of the solution and temperature shows three regimes: in water, the rate controlling phenomenon is the liquid side diffusion; in concentrated soda solutions (>0.25M/l), gaseous phase diffusion is rate controlling. In dilute soda solutions, product diffusion rates in the two phases and chemical reaction kinetics both determine absorption rate
Availability note (English)
MF available from INIS under the Report Number.Abstract (French)
Les essais ont ete menes avec un reacteur agite contenant le liquide dans sa partie inferieure, l'iode gazeux circulant au dessus de la surface de la solution. L'etude de la vitesse d'absorption en fonction de la concentration en iode dans le gaz, la concentration des produits presents en phase aqueuse, le debit gazeux, la vitesse d'agitation du liquide, la temperature, met en evidence trois regimes. Dans l'eau la diffusion dans le liquide impose la vitesse d'absorption; dans les solutions concentrees de soude (>0,25 M/1), l'absorption est gouvernee par la diffusion en phase gaz; dans le cas des solutions de soude diluees, la vitesse d'absorption depend a la fois de la vitesse de diffusion des produits dans chaque phase et de la vitesse de la reaction chimiqueFiles
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Additional details
Additional titles
- Original title (French)
- Etude de l'absorption de l'iode gazeux dans l'eau et les solutions aqueuses d'hydroxyde de sodium
Publishing Information
- Imprint Pagination
- 84 p.
- Report number
- CEA-R--4819
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 8339941
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- ACTIVATION ENERGY; ADSORPTION; AQUEOUS SOLUTIONS; CHEMICAL REACTION KINETICS; CHEMISORPTION; DECONTAMINATION; DIFFUSION; GASEOUS WASTES; GASES; IODINE; MASS TRANSFER; RADIOACTIVE WASTE PROCESSING; SODIUM HYDROXIDES; WATER
- Descriptors DEC
- ALKALI METAL COMPOUNDS; CHEMICAL REACTIONS; CLEANING; DISPERSIONS; ELEMENTS; ENERGY; FLUIDS; HALOGENS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; HYDROXIDES; KINETICS; MANAGEMENT; MIXTURES; NONMETALS; OXYGEN COMPOUNDS; REACTION KINETICS; SEPARATION PROCESSES; SODIUM COMPOUNDS; SOLUTIONS; WASTE MANAGEMENT; WASTE PROCESSING; WASTES