Imerys Pigments, Inc.

Basf Corporation

Imerys Usa, Inc.

Ismail Yildirim

Bilge Yilmaz

Robert J Pruett

Sharad Mathur

Richard R Berube

Ashok Khokhani

Anthony N Lake

Jun Yuan

Michael B Sigman

Jim Richardson

William Limousin

Mikel Dean Smith

Paul M Meizanis

Wathudura Indika Namal De Silva

Provided is a kaolin having a finer particle size and a narrower particle size distribution, in combination with suitable morphology. Also provided are a method of preparing the kaolin product and methods of use.

Pigment for paper and coatings

A mineral composition and related methods may include a mineral treated with a styrene-based polymer. The mineral treated with a styrene-based polymer may be used for a coating on a paper product having a first Cobb value that is less than a second Cobb value of the paper product with the coating devoid of the mineral composition.

Compositions comprising kaolin treated with a styrene-based polymer and related methods

A method of treating a kaolin particulate material to improve one or more of its properties by removal of impurity particles therein which includes: producing a dispersed aqueous suspension of a kaolin particulate material containing at least 0.1% by weight, based on the dry weight of the kaolin particulate material of separable particulate impurity; diluting said dispersed aqueous suspension by adding a diluent thereto; adding a selective flocculation polymer to the diluted suspension; allowing the suspension containing the polymer to separate in a selective flocculation separator into layers comprising a flocculated product layer and a deflocculated impurity layer containing the separable impurity; and extracting the separated layers from the separator, wherein at least a portion of said deflocculated impurity layer is recirculated for use as at least a portion of the aforementioned diluent.

Method of treating an aqueous suspension of kaolin

Disclosed herein are methods for removing discoloring impurities, such as carbon impurities, particularly graphite, from kaolin clay to enhance the brightness of the kaolin clays. The methods include reverse flotation processes. Also disclosed herein are high brightness kaolin products, and the uses thereof.

Methods for purifying kaolin clays using reverse flotation, high brightness kaolin products, and uses thereof

Disclosed herein is a method of calcining particulate material, such as kaolin. The method comprises providing a feed mixture comprising a particulate material, such as hydrous kaolin, wherein at least a portion of the particulate feed is coated with a liquid fuel. The method further comprises heating the particulate feed mixture to calcine the particulate feed and burn the liquid fuel to form a calcined product. The liquid fuel coating can act as a secondary, indirect heat source for calcining. The overall calcining temperatures and/or times can be reduced as a result of adding the liquid fuel.

Methods of calcining particulate material

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Milledgeville, GA, United States of America

Ismail Yildirim