Omya International Ag

Olav Bergset

Patrick A C Gane

George Saunders

Xueping Qiu

Dan Varney

Alain Cremaschi

Robert Gutsche

Ludovic Hautcoeur

The present invention relates to a method for drying wet particulate matter, wherein at least one feed stream () of wet particulate matter is contacted with superheated steam () within at least one drying chamber () with a mixing system, and the dried particulate matter is discharged as at least one product stream () to obtain the dried particulate matter.

Method for drying wet particulate matter, wherein the dried particulate matter is a white mineral having a brightness Ry of at least 65% that forms particulate matter through drying in direct superheated steam dryer

A mineral composition comprising mineral particles, said mineral particles, when in a densely compacted bed form, having a volume defined median pore diameter from 0.01 to 0.04 micrometre, and having an intruded total specific void volume of 0.1-0.3 cm/g. A specific advantage of this composition is that it as a component in a coating, allows the passage of ink solvent into the base paper while retaining the ink molecules on the surface.

Mineral composition, especially for use in paper fillers and paper or plastic coatings

A mineral composition comprising mineral particles, said mineral particles, when in a densely compacted bed form, having a volume defined median pore diameter from 0.01 to 0.04 micrometer, and having an intruded total specific void volume of 0.1-0.3 cm/g. A specific advantage of this composition is that it as a component in a coating, allows the passage of ink solvent into the base paper while retaining the ink molecules on the surface.

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Birmingham, AL, United States of America

Olav Bergset