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Possibility of ion-exchange column studies using stabilised montmorillonite-H aggregates; Possibilite d'etude d'echanges d'ions en colonne sur des agregats de Montmorillonite-H stabilises

Abstract

The conditions necessary for obtaining stable aggregates of montmorillonite-H, prepared without addition of organic flocculant, is discussed. These aggregates possess the same general ion-exchange properties as montmorillonite-H suspensions, about which many papers have been written. Their insolubility and their stable physical form enable them to be used in columns in exactly the same way as the usual organic ion exchangers. The examples of cation fixation and separation described in this report emphasize the similarities between the properties of this exchanger and those of organic cation-exchange resins, and open up possibilities for the extrapolation of the many investigations carried out on organic exchangers to mineral exchangers of this type. Amongst the essential differences to be remarked, we have shown that the properties of physical stability and chemical exchange remain the same at temperatures up to 300 deg. C, to a first approximation, under very intense {gamma} irradiation. (author) [French] Les conditions d'obtention d'agregats stables de montmorillonite-H prepares sans addition de floculant organique sont discutees. Ces agregats possedent les proprietes generales d'echangeurs d'ions des suspensions de montmorillonite-H, tres etudiees par de nombreux auteurs. Ils presentent une insolubilite et une forme physique stable permettant une utilisation en colonne identique a celle des echangeurs  More>>
Authors:
Platzer, R; Bittel, R [1] 
  1. Commissariat a l'Energie Atomique, Saclay (France).Centre d'Etudes Nucleaires
Publication Date:
Jul 01, 1959
Product Type:
Technical Report
Report Number:
CEA-R-1384
Resource Relation:
Conference: Communication presented at the 'International Days of Clays' Study', Communication presentee aux 'journees internationales d'etude des argiles' (1958) de l'Association belge pour favoriser l'etude des verres et des composes siliceux, Belge (Belgium), 1958; Other Information: 1 refs
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CATIONS; CHEMICAL PROPERTIES; COLUMN PACKING; COMPARATIVE EVALUATIONS; FLOCCULATION; GAMMA RADIATION; ION EXCHANGE; IRRADIATION; MONTMORILLONITE; ORGANIC ION EXCHANGERS; PHYSICAL PROPERTIES; SATURATION; STABILITY
OSTI ID:
20942983
Research Organizations:
CEA Saclay, 91 - Gif-sur-Yvette (France)
Country of Origin:
France
Language:
French
Other Identifying Numbers:
TRN: FR07R1384096436
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
4 pages
Announcement Date:
Dec 13, 2007

Citation Formats

Platzer, R, and Bittel, R. Possibility of ion-exchange column studies using stabilised montmorillonite-H aggregates; Possibilite d'etude d'echanges d'ions en colonne sur des agregats de Montmorillonite-H stabilises. France: N. p., 1959. Web.
Platzer, R, & Bittel, R. Possibility of ion-exchange column studies using stabilised montmorillonite-H aggregates; Possibilite d'etude d'echanges d'ions en colonne sur des agregats de Montmorillonite-H stabilises. France.
Platzer, R, and Bittel, R. 1959. "Possibility of ion-exchange column studies using stabilised montmorillonite-H aggregates; Possibilite d'etude d'echanges d'ions en colonne sur des agregats de Montmorillonite-H stabilises." France.
@misc{etde_20942983,
title = {Possibility of ion-exchange column studies using stabilised montmorillonite-H aggregates; Possibilite d'etude d'echanges d'ions en colonne sur des agregats de Montmorillonite-H stabilises}
author = {Platzer, R, and Bittel, R}
abstractNote = {The conditions necessary for obtaining stable aggregates of montmorillonite-H, prepared without addition of organic flocculant, is discussed. These aggregates possess the same general ion-exchange properties as montmorillonite-H suspensions, about which many papers have been written. Their insolubility and their stable physical form enable them to be used in columns in exactly the same way as the usual organic ion exchangers. The examples of cation fixation and separation described in this report emphasize the similarities between the properties of this exchanger and those of organic cation-exchange resins, and open up possibilities for the extrapolation of the many investigations carried out on organic exchangers to mineral exchangers of this type. Amongst the essential differences to be remarked, we have shown that the properties of physical stability and chemical exchange remain the same at temperatures up to 300 deg. C, to a first approximation, under very intense {gamma} irradiation. (author) [French] Les conditions d'obtention d'agregats stables de montmorillonite-H prepares sans addition de floculant organique sont discutees. Ces agregats possedent les proprietes generales d'echangeurs d'ions des suspensions de montmorillonite-H, tres etudiees par de nombreux auteurs. Ils presentent une insolubilite et une forme physique stable permettant une utilisation en colonne identique a celle des echangeurs d'ions organiques usuels. Les exemples de fixation et de separation de cations qui ont ete decrits dans cet expose font ressortir les analogies entre les proprietes de cet echangeur et celles des resines organiques echangeurs de cations et permettent d'esperer une extrapolation aux echangeurs mineraux de ce type des tres nombreux travaux consacres aux echangeurs organiques. Parmi les differences essentielles a noter, nous avons mis en evidence que les proprietes de stabilite physique et d'echanges chimiques des agregats de montmorillonite subsistent a des temperatures allant jusqu'a 300 deg. C, et en premiere approximation, sous des irradiations {gamma} tres intenses. (auteur)}
place = {France}
year = {1959}
month = {Jul}
}