Anglo-american Clays Corporation

Ecc America Inc.

Bomi M Bilimoria

Jerry Allen Cook

Ralph E Turner

Robert H Garner

Anthony Allan May

Herbert I Lewis

A method for increasing the bulk density and decreasing the time of wetting with water of a substantially anhydrous kaolin clay powder, comprising dry milling said powder in a media mill wherein the media is at least +5 mesh, and using work inputs of from about 5 to about 40 HP-hrs/ton of dry clay. The process enables improved handling characteristics for the treated clay with respect to bulk material handling systems.

Method for improving handleability of calcined kaolin clay products

A method for increasing the bulk density and decreasing the time of wetting with water of a substantially anhydrous kaolin clay powder, comprising dry ball-milling said powder using work inputs of from about 5 to about 40 HP-hrs/ton of dry clay. The milling may be effected by grinding the clay with ceramic balls of less than 5 inches diameter. The process enables improved handling characteristics for the treated clay with respect to bulk material handling systems.

A method for increasing the bulk density and decreasing the time of wetting with water of a substantially anhydrous kaolin clay powder, comprising dry ball-milling the said powder using work inputs of from about 5 to about 40 HP-hrs/ton of dry clay, followed by pulverization in a high energy impact mill and classification to eliminate undesirable larger particles. The ball-milling may be effected by grinding the clay with ceramic balls of less than 5 inches diameter. The process enables improved handling characteristics for the treated clay with respect to bulk material handling systems.

Aliphatic complex phosphate esters or salts thereof, of a non-ionic surface active compound, are utilized together with aliphatic fatty acids as collector agents during flotation for removing titanium-based impurities from kaolin clays in a froth flotation process.

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Tennille, GA, United States of America

Bomi M Bilimoria