Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-22T23:55:46.605Z Has data issue: false hasContentIssue false
  • English
  • Français

A Method for Removing Titanium Dioxide Impurities from Kaolin

Published online by Cambridge University Press:  01 July 2024

R. N. Maynard ,
N. Millman  and
J. Iannicelli
R. N. Maynard
Affiliation:
J. M. Huber Corporation, Clay Division, Huber, Georgia
N. Millman
Affiliation:
J. M. Huber Corporation, Clay Division, Huber, Georgia
J. Iannicelli
Affiliation:
J. M. Huber Corporation, Clay Division, Huber, Georgia
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The removal of titanium minerals from kaolin can be accomplished by treatment with dispersing agents in an amount in excess of that required to produce maximum deflocculation of the kaolinite particles. In this reflocculated state the kaolinite particles attain a high degree of suspensional stability, and the titanium mineral particles, primarily anatase, are liberated and can be separated by sedimentation. Substantial removal of anatase impurities can be achieved by this method.

Résumé

Résumé

L’enlèvement des mineraux de titane du kaoline peut s’accomplir au moyen du traitement à l’aide d’une quantité d’agents de dispersion supérieure à celle nécessaire en vue de produire la déflocculation maximale des particules de kaolinite. A l’état reflocculé, les particules de kaolinite atteignent un degré élevé de stabilité en suspension, et les particules du mineral de titane, surout sous forme d’anatase, sont dégagées et peuvent être séparées par sédimentation. L’enlèvement important des impuretés d’anatase peut s’accomplir de cette façon.

Kurzreferat

Kurzreferat

Die Entfernung von Titanmineralen aus Kaolin kann durch Behandlung mit einer Menge von Dispergierstoffen, die einen Überschuss über die zur Erzielung einer maximalen Entflockung der Kaolinteilchen erforderlichen darstellt, erreicht werden. In diesem neu ausgeflockten Zustande zeigen die Kaolinitteilchen eine bedeutend erhöhte Suspensionsstabilität, und die Titanmineralteilchen, in erster Linie Anatas, werden frei gemacht und können durch Sedimentation abgeschieden werden. Auf diese Weise gelingt es beträchtliche Anatasverunreinigungen zu entfernen.

Резюме

Резюме

Удаление титановых минералов из каолина достигается обработкой диспе-ргирующим средством в количестве, превышающем количество требуемое для достижения максимальной дефлоккуляции частиц каолинита. В таком повторно флоккулированном состоянии частицы каолинита достигают более высокой степени взвешенной устойчивости, а частицы титановых минералов, преимущественно анатаз, освобождаются и отделимы седиментацией. Значительное удаление анатазовых загрязнений может быть достигнуто этим методом.

Type
Research Article
Information
Clays and Clay Minerals , Volume 17 , Issue 2 , July 1969 , pp. 59 - 62
Copyright
Copyright © 1969, The Clay Minerals Society

Footnotes

*

All brightness data refer to measurements made according to the standard procedure T 646 m-54 of the Technical Association of Pulp and Paper Industry.

References

Weaver, C. E. (1968) Electron microprobe study of kaolin: Clays and Clay Minerals 16, 187–189.CrossRefGoogle Scholar
Greene, E. W. and Duke, J. B. (1962) Selective froth flotation of ultrafine minerals or slimes: Mining Engr 3–7.Google Scholar
Cundy, E. K. (1968) Can. Pat. 780, 926 (March 19, 1968).Google Scholar
Van Olphen, H. (1963) An Introduction to Clay Colloid Chemistry: Interscience, New York.Google Scholar
Riddick, T. M. (1968) Control of Colloid Stability through Zeta Potential, Vol. I: Livingston, Wynnewood, Pennsylvania.Google Scholar
Thompson, R. N. (1953) Dispersion of Coating Colors: Preparation of Coating Colors: Tappi Monograph Series No. 11, TAPPI, New York .Google Scholar
Robinson, J. V. and Thompson, R. N. (1963) Dispersants: Tappi Monograph Series No. 25, Tappi, New York .Google Scholar
Millman, N. (1964) Some Factors that Influence the Viscosity of Paper Coating Compositions: Tappi 47, No. 11, New York.Google Scholar
Lyons, J. W. (1961) Phosphorous and Its Compounds (Edited by Van Wazer, J. R.) Vol. 2, Chap. 26: Interscience, New York .Google Scholar
Maynard, R. N., Skipper, V. R. and Millman, N. (1968) U.S. Pat. 3, 371, 988 (March 5, 1968).Google Scholar