Elsevier

Applied Clay Science

Volume 1, Issue 4, October 1986, Pages 367-373
Applied Clay Science

Viscosity improvement of an Argentine kaolin by ionic treatment

https://doi.org/10.1016/0169-1317(86)90011-6Get rights and content

Abstract

Although kaolins from the provinces of Chubut and Santa Cruz (in Argentina's Patagonia) exhibited some promising characteristics for their use as paper-coating pigments, the rheological properties of their high solids suspensions preclude their industrial utilization. Verwey-Overbeek's theory provides the information necessary to improve the flow properties of suspensions by means of ionic treatment. Saturation with a monovalent ion — such as Na+ — generates an energy barrier which prevents flocculation and significantly improves the viscosity of suspensions so that they compare favorably with coating clays from Georgia in the U.S.A.

References (10)

  • J.L. Galazzo et al.

    Evaluación de las aptitudes papeleras de los caolines argentinos

  • J.L. Galazzo et al.

    Evaluación de las aptitudes papeleras de los caolines argentinos

  • J.L. Galazzo et al.

    Evaluación de las aptitudes papeleras de los caolines argentinos

  • J.L. Galazzo et al.

    Factors affecting the physical and chemical properties of Argentine kaolins

    Appld. Clay Sci.

    (1985)
  • K. Hayase

    Génesis del yacimiento de caolin de la Mina Villega, Prov. de Chubut, Rep. Argentina

    Rev. Asoc. Geol. Arg.

    (1969)
There are more references available in the full text version of this article.

Cited by (2)

  • Yield stress of laterite suspensions

    1991, Journal of Colloid And Interface Science
  • Surface ion-exchange of Georgia kaolin and rheological properties

    1997, Journal of the Ceramic Society of Japan
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