Record Display for the EPA National Library Catalog

RECORD NUMBER: 7 OF 13

OLS Field Name OLS Field Data
Main Title Kinetics of Reaction Between Pure and Fe2O3(-)Containing NaCl or CaCl2 with a Gas Phase of SO2, O2 and SO3 (Zur Kinetik der Reaktion Zwischen Reinem und Fe2O3(-)Haltigem NaCl oder CaCl2 mit Einer Gasphase aus SO2, O2 und SO3).
Author Fritsch, E. ; Gerlach, J. ; Paulek., F. ;
CORP Author Environmental Protection Agency, Research Triangle Park, N.C. Translation Services Section.
Year Published 1966
Report Number EPA-TR-73-87 ;APTIC-14067;
Stock Number PB-252 813-T
Additional Subjects Reaction kinetics ; Iron oxides ; Sodium chloride ; Sulfur dioxide ; Oxygen ; Sulfurtrioxide ; Calcium chlorides ; Gases ; Concentration(Composition) ; Adsorption ; Atmospheric chemistry ; Air pollution ; Translations ; East Germany ;
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-252 813-T Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 25p
Abstract
The velocity of formation of gaseous chlorine which results from the reaction of NaCl or CaCl2 with gas mixtures of SO2-O2 or SO2-O2-SO3 has been measured. For mixtures of SO2-O2 the reaction rate depends on the composition of the gas atmosphere at constant temperature. For concentrations of SO3 above one percent, the rate velocity is determined only by the SO3 concentration. Furthermore, the influence of admixtures of Fe2O3 on the kinetics of these reactions has been examined. The complex sequence of reactions has been subdivided into partial reactions in order to investigate the various processes occurring during chloridizing roasting, most of which are largely unknown as yet. In the present study, the reactions of the NaCl and CaCl2 chlorine vehicles with SO2-O2 gas mixtures have been examined in the temperature range of between 500 and 600C, first with mixtures of changing composition and then with increased SO3 content by measuring weight increases. Furthermore, the effect of admixtures of Fe2O3 on these reactions, and the behavior of pure Fe2O3 with the reaction gases has been examined. Kinetic tests determine the speeds with which these reactions occur.