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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
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Abstract

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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.

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