Sud-chemie Ag

Sud-chemie Inc.

Sud-chemie Adsorbents, Inc.

Christian Fabry

Jorge Bello

Stefan Dick

Werner Zschau

David Hill

A process for the microbial activation of layer silicates.

Microbial activation of layer silicates

A process for the production of a bleaching clay product which includes the steps of selecting a naturally occurring, acidic hormite clay product, cleaning and crushing the hormite clay products to form clay clumps, selecting a naturally occurring less acidic, clay product which contains a higher level of montmorillonite than does the acidic hormite clay, aging the crushed hormite clay, blending the aged hormite clay with the less acidic clay product either before or after aging and activating the clay with small quantities of acid. An acceptable bleaching clay product can be produced without activation with acid.

Processes for producing a blended bleaching clay product and blended bleaching clay products produced by those processes

A process for the production of a bleaching clay product which includes the steps of selecting a naturally occurring hormite clay product, cleaning and crushing the clay product to form clay clumps less than 6 in. in diameter, aging the crushed hormite clay and activating the clay with extremely small amounts of acid, in the range of less than 1 percent, by weight. Also, an acceptable bleaching clay product can be produced without the addition of any acid to the aged hormite clay.

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Tallahassee, FL, United States of America

Christian Fabry