Sorption and desorption of Fe(III) on natural and chemically modified zeolite
Creators
- 1. Slovak University of Technology, Bratislava (Slovakia). Faculty of Chemical Technology
Description
The Fe(III) uptake from aqueous solutions by natural and chemically modified zeolites was investigated using a gradual radioexchange method and AAS technique. The leachability of Fe(III) from loaded zeolites was studied too. The Fe-uptake reached the value of 60 mg x g-1 for the zeolite chemically treated with 6 mol x l-1 solution of NaOH and it is more than twelve times higher than that of the raw zeolite. The leachability of the loaded zeolite samples in water and alkaline solution was up 5%. The leachability of the same zeolites in acid solution depended on the concentration of modifying solution. The leachability at pH = 2.6 in the range 2-20% at pH = 1.9 was many times higher. The results of the radioexchange and AAS methods were compared. (author)
Additional details
Publishing Information
- Journal Title
- Journal of Radioanalytical and Nuclear Chemistry
- Journal Volume
- 242
- Journal Issue
- 1
- Journal Page Range
- p. 227-230
- ISSN
- 0236-5731
- CODEN
- JRNCDM
INIS
- Country of Publication
- Hungary
- Country of Input or Organization
- Hungary
- INIS RN
- 30053964
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; CHEMICAL REACTION KINETICS; DESORPTION; IRON; IRON 59; LEACHING; PH VALUE; SORPTION; TRACER TECHNIQUES; ZEOLITES
- Descriptors DEC
- BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; DAYS LIVING RADIOISOTOPES; DISSOLUTION; ELEMENTS; EVEN-ODD NUCLEI; INORGANIC ION EXCHANGERS; INTERMEDIATE MASS NUCLEI; ION EXCHANGE MATERIALS; IRON ISOTOPES; ISOTOPE APPLICATIONS; ISOTOPES; KINETICS; MATERIALS; METALS; MINERALS; NUCLEI; RADIOISOTOPES; REACTION KINETICS; SEPARATION PROCESSES; SILICATE MINERALS; SPECTROSCOPY; TRANSITION ELEMENTS
Optional Information
- Notes
- 17 refs.