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Sepiolite and Related Compounds: Its Stability and Application

Published online by Cambridge University Press:  01 January 2024

Anton Preisinger
Anton Preisinger*
Affiliation:
Mineralogisches Institut, Universität Wien, Vienna, Austria
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Abstract

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The unit-cell characteristics and structures of sepiolite, ferri-sepiolites (xylotile, mountain wood, gunnbjarnite), loughlinite and palygorskite (attapulgite) and their structural relationships are discussed. The chemical, morphological and thermal properties are explained by their structures. The unit-cell characteristics and structures of sepiolite “anhydride”, loughlinite “anhydride” and palygorskite “anhydride” are given. Under low water vapor pressure the phase transformations sepiolite to sepiolite “anhydride” and palygorskite to palygorskite “anhydride” are reversible. It was not possible to synthesize sepiolite in the system MgO−SiO2−H2O under confined pressure within a range of 80° to 300°C

The possibility of the application of sepiolite and related compounds in industry, specially in the automobile industry, is referred to.

Type
General Sessions
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 10 , February 1961 , pp. 365 - 371
Copyright
Copyright © Clay Minerals Society 1961

References

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