INGEOSUR   20376
INSTITUTO GEOLOGICO DEL SUR
Unidad Ejecutora - UE
artículos
Título:
The effect of kaolin properties on their behaviour in ceramic
Autor/es:
MICHELE DONDI A,⁎, CLAUDIO IGLESIAS B, EDUARDO DOMINGUEZ C,
Revista:
APPLIED CLAY SCIENCE
Editorial:
Elsevier
Referencias:
Lugar: Amsterdam; Año: 2008 vol. 40 p. 143 - 158
ISSN:
0169-1317
Resumen:
The Patagonian kaolins offer a wide set of origin of deposits, composition, mineral processing and ceramic properties, giving a
rare opportunity for investigating the interdependence of mineralogy, chemical composition, particle size distribution, texture, and
surface activity with their technological behaviour in sanitaryware and porcelain stoneware production. Plasticity is strictly
dependent on surface activity, b2 ìm fraction and expandable clay minerals; slip rheology is affected by soluble salts and
expandable clay minerals, but also by high specific surface or tubular halloysite. Kaolinite/halloysite play an opposite role versus
smectite/interstratified I/S in slip casting and tile pressing: the former allow faster casting rates, while the latter improve powder
flowability and mechanical strength. Kaolinite and quartz are beneficial for drying behaviour while high surface activity or
expandable clay minerals increase significantly drying sensitivity. Firing behaviour is mainly affected by minor components
supplying fluxing (i.e. iron, alkali and alkaline-earth) oxides. A great deal of technological parameters seem to be reasonably
predicted by the surface activity of clays and especially the Methylene Blue index, which is the most reliable, simple and economic
method to predict and control the ceramic response of kaolins and ball clays.
© 2007 Elsevier B.V. All rights reserved.
predicted by the surface activity of clays and especially the Methylene Blue index, which is the most reliable, simple and economic
method to predict and control the ceramic response of kaolins and ball clays.
© 2007 Elsevier B.V. All rights reserved.
expandable clay minerals, but also by high specific surface or tubular halloysite. Kaolinite/halloysite play an opposite role versus
smectite/interstratified I/S in slip casting and tile pressing: the former allow faster casting rates, while the latter improve powder
flowability and mechanical strength. Kaolinite and quartz are beneficial for drying behaviour while high surface activity or
expandable clay minerals increase significantly drying sensitivity. Firing behaviour is mainly affected by minor components
supplying fluxing (i.e. iron, alkali and alkaline-earth) oxides. A great deal of technological parameters seem to be reasonably
predicted by the surface activity of clays and especially the Methylene Blue index, which is the most reliable, simple and economic
method to predict and control the ceramic response of kaolins and ball clays.
© 2007 Elsevier B.V. All rights reserved.
predicted by the surface activity of clays and especially the Methylene Blue index, which is the most reliable, simple and economic
method to predict and control the ceramic response of kaolins and ball clays.
© 2007 Elsevier B.V. All rights reserved.
b2 ìm fraction and expandable clay minerals; slip rheology is affected by soluble salts and
expandable clay minerals, but also by high specific surface or tubular halloysite. Kaolinite/halloysite play an opposite role versus
smectite/interstratified I/S in slip casting and tile pressing: the former allow faster casting rates, while the latter improve powder
flowability and mechanical strength. Kaolinite and quartz are beneficial for drying behaviour while high surface activity or
expandable clay minerals increase significantly drying sensitivity. Firing behaviour is mainly affected by minor components
supplying fluxing (i.e. iron, alkali and alkaline-earth) oxides. A great deal of technological parameters seem to be reasonably
predicted by the surface activity of clays and especially the Methylene Blue index, which is the most reliable, simple and economic
method to predict and control the ceramic response of kaolins and ball clays.
© 2007 Elsevier B.V. All rights reserved.
predicted by the surface activity of clays and especially the Methylene Blue index, which is the most reliable, simple and economic
method to predict and control the ceramic response of kaolins and ball clays.
© 2007 Elsevier B.V. All rights reserved.
fluxing (i.e. iron, alkali and alkaline-earth) oxides. A great deal of technological parameters seem to be reasonably
predicted by the surface activity of clays and especially the Methylene Blue index, which is the most reliable, simple and economic
method to predict and control the ceramic response of kaolins and ball clays.
© 2007 Elsevier B.V. All rights reserved.
Keywords: Ball clay; Ceramic properties; Drying behaviour; Kaolin, Methylene blue index; Plasticity; Slip rheologyBall clay; Ceramic properties; Drying behaviour; Kaolin, Methylene blue index; Plasticity; Slip rheology