Donald W Robinson

US Patent:

61104280, Aug 29, 2000

Filed:

May 27, 1997

Appl. No.:

8/793482

Inventors:

Govert Arnoldus Petrus Borst - Vught, NL
Johannes Antonius Gerardus Wilhelmus Zigmans - Rotterdam, NL
Benjamin Joseph Chemelli - Durham NC
Donald Robinson - Lakeland FL

Assignee:

Akzo Nobel N.V. - Arnhem

International Classification:

B01D 2990
B01D 2900

US Classification:

422101

Abstract:

A device is used for the isolation of a biological material from a basic material containing the biological material. The device includes a container for holding a mixture of the basic material, a chaotropic substance and a solid phase which binds the biological material. The device also includes a filter for separating the solid phase with the biological material from the fluid bound thereto, and a connector for connecting and disconnecting the container to an inlet for washing fluid and eluant fluid, as well as a connector for connecting and disconnecting the container to an outlet for the washing fluid after washing the biological material bound to the solid phase, as well as a connector for connecting and disconnecting the container to an eluate reservoir for collection of the eluant fluid with the dissolved biological material.

US Patent:

48000710, Jan 24, 1989

Filed:

May 3, 1988

Appl. No.:

7/189870

Inventors:

Ralph W. Kaesler - Barrington IL
Donald G. Robinson - Lakeland FL
Wayne L. Moss - Columbia SC
Brian K. Failon - Wheaton IL

Assignee:

Nalco Chemical Company - Naperville IL

International Classification:

C01B 2516
B01D 2101
B03D 300
C02F 152

US Classification:

423321R

Abstract:

Separation of gypsum from phosphoric acid liquor produced during the production of phosphoric acid from finely ground phosphate rock. These aids are characterized as containing sulfonate and acrylamide.