Eldred H Chimowitz

US Patent:

47145269, Dec 22, 1987

Filed:

Mar 17, 1987

Appl. No.:

7/026603

Inventors:

Kenneth Pennisi - Rochester NY
Eldred Chimowitz - Rochester NY

Assignee:

The University of Rochester - Rochester NY

International Classification:

B01D 334
C07C 320
C07C 5144

US Classification:

203 49

Abstract:

A process for extracting pure components from a multi-component system, said system comprising a mixture of at least two solids or liquids in a supercritical fluid at constant pressure, which involves making use of the cross-over pressure points of the components which comprise the system.

US Patent:

53052323, Apr 19, 1994

Filed:

May 13, 1992

Appl. No.:

7/882321

Inventors:

Eldred H. Chimowitz - Brighton NY
Frank VanPuyvelde - Tielt, BE

Assignee:

The University of Rochester - Rochester NY

International Classification:

B01D 1508

US Classification:

364498

Abstract:

A system (method and apparatus) for optimizing the relationship between resolution and time in chromatograms, especially chromatograms obtained by supercritical fluids (CSF) chromatography. The pressure or temperature or fluid density of the solution caring the material under analysis is varied dynamically under computer control to provide an optimum capacity factor for a particular transporting fluid in a particular chromatographic system to obtain the resolution of interest in the shortest period of time.