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Synthesis of kaolinite by homogeneous precipitation at room temperature

I. Use of anionic resins in (OH) form

Published online by Cambridge University Press:  09 July 2018

A. La Iglesia  and
J. L. Martin-Vivaldi
A. La Iglesia
Affiliation:
Departmento de Cristalografía y Mineralogía Facultad de Ciencias, Universidad Complutense, Madrid, and Instituto ‘Lucas Mallada’ de Investigaciones Geológicas, C.S.I.C. Madrid
J. L. Martin-Vivaldi
Affiliation:
Departmento de Cristalografía y Mineralogía Facultad de Ciencias, Universidad Complutense, Madrid, and Instituto ‘Lucas Mallada’ de Investigaciones Geológicas, C.S.I.C. Madrid
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Abstract

A method of precipitation in homogenous solution has been used for the synthesis of kaolin minerals at room temperature. The method consists essentially in producing conditions for which a sufficiently slow rate of precipitation is maintained. In the particular case described in this paper, the conditions for homogenous precipitation are obtained by addition of an anion exchange resin in the OH form to an acidic solution (pH ≈ 4) of sodium silicate and aluminium chloride or acetate.

The mineral species synthesized in each particular case depend on the kind of anions present in the original solution (chloride or acetate) and also on the nature of the exchange resin used.

Type
Research Article
Information
Clay Minerals , Volume 10 , Issue 5 , July 1975 , pp. 399 - 405
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1975

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