The absorption of chlorine from air by solutions of olefins and iodine in carbon tetrachloride
β Scribed by G.H. Roper
- Publisher
- Elsevier Science
- Year
- 1953
- Tongue
- English
- Weight
- 564 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0009-2509
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β¦ Synopsis
STEPHENS-D~ORRIS diic column isusedtostudytheinfluenceof chemicalreaction upon the rates of absorption of chlorine from air by solutions of either cyclohexene or oleic acid with iodine in carbon tetrachloride.
The increase in the liquid film coefhcient due to chemical reaction between chlorine and cyclohexene was found to be independent of the concentration of cyclohexene, but no satisfactory correlation of the experimental results could be obtained.
The fractional increase in the liquid film coefficient due to reaction between chlorine and oleic acid varied from zero to 9, and was found to be +-I=89 (CC + 0*00005)cB 0.5 ci 1 where 4 is the ratio of the liquid fihn coefficient to the coefficient in the absence of reaction, CC is the concentration of the catalyst (iodine), cg is the concentration of oleic acid, and ci is the concentration of the dissolved chlorine at the gas-liquid interface. The units are lb. moles, feet and hours. The film theory is unable to predict the effect of the chemical reaction on the liquid film coefficient. R&sumB-Au moyen de la colonne B disques de STEPHENS-MORRIS, l'auteur Btudie l'influence d'une reaction chimique sur la vitesse d'absorption du chlore dans l'air au moyen de solutions d'iode dans Ccl, contenant soit du cyclohextne soit de l'acide oleique. L'accroissement du coefficient de transfert relatif au liquide accompagnant la r4action chimique entre le chlore et le cyclohexene est independant de la concentration de ce dernier, sans qu'il ait Bti possible de trouver une correlation satisfaisante entre les divers r&ultats expkrimentaux. L'accroissement partiel du coefficient provenant de la reaction entre le chlore et l'acide ol&ique a varie entre 0 et 9 et peut ttre represent6 par : 4-1=30 (CC. + 0*00005)cB o.5 4 ou 4 est le rapport entre les deux valeurs du coefficient avec ou sans &action, cc est la concentration du catalyseur (iode), cg, la concentration de l'acide oleique, Ci, la concentration en Cl, dissous $ l'interface gaz-liquide. Unites : lb. -moles, pieds, heures.
La theorie du film de passage ne permet pas de prkdire l'effet de la reaction chimique sur le coefficient de transfert relatif au liquide.
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