E.i. Dupont De Nemours and Company

Karsten Keller

Hyun Sung Lim

David Charles Jones

Benjamin Fuchs

Christian Hoffmann

Christopher Mark Rey

Glen Edward Simmonds

Christian Hoffman

John D Bomberger

Benjamin C Fuchs

Christopher Rey

This invention relates to an improved cake-filtration solid-liquid separation process wherein the improvement comprises simultaneously subjecting the solid-liquid mixture to a homogeneous magnetic field, a magnetic field gradient or both and cake-filtration to accomplish separation.

Magnetic field enhanced cake-filtration solid-liquid separations

This invention relates to apparatus for carrying out continuous or batch centrifugation solid-liquid separation processes in which the solid-liquid mixture is subjected to magnetic field gradients and centrifugation.

Apparatus for magnetic field gradient enhanced centrifugation

This invention relates to various apparatus for carrying out cake-filtration solid-liquid separation processes in which the solid-liquid mixture is subjected to a homogeneous magnetic field, a magnetic field gradient or both and cake-filtration.

Apparatus for magnetic field and magnetic gradient enhanced filtration

This invention relates to a continuous or batch centrifugation solid-liquid separation process comprising simultaneously subjecting the solid-liquid mixture to localized magnetic field gradients and the centrifugation and to improved centrifugation solid-liquid separation processes wherein the improvement comprises simultaneously subjecting the solid-liquid mixture to a homogeneous magnetic field, a magnetic field gradient or both prior to and/or during the centrifugation.

Magnetic field and field gradient enhanced centrifugation solid-liquid separations

The present invention relates to fabrics that can be used in the manufacture of paper. The fabrics preferably have at least three regions of fabric with specified distributions of pore sizes. The fabrics disclosed herein are an effective alternative to conventional dewatering fabrics for removing water from the incipient paper, which can provide energy cost savings in subsequent elevated temperature drying steps.

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Hockessin, DE, United States of America

Karsten Keller