Issued Patents All Time
Showing 51–70 of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5948950 | Process for separating para-xylene, comprising an adsorption step with injection of water and a crystallization step | Alain Methivier, Annick Pucci | 1999-09-07 |
| 5922924 | Process for the separation of p-xylene in C.sub.8 aromatic hydrocarbons with a simulated moving bed adsorption and a crystallization | Claude Roux Guerraz, Than Nguyen Thanh | 1999-07-13 |
| 5902486 | Method for controlling with precision a process for separating constituents of a mixture, in a simulated moving bed separation system | Nicolas Couenne, Pascal Duchene, Dominique Humeau | 1999-05-11 |
| 5882523 | Apparatus and process for flushing a simulated moving bed comprising at least two fluid distribution lines | France Chopinet, Robert Jacob, Francis Nativel | 1999-03-16 |
| 5866740 | Production of para-xylene from an effluent from paraselective toluene disproportionation using a crystallization process combined with simulated moving bed adsorption | Paul Mikitenko | 1999-02-02 |
| 5762806 | Process for simulated moving bed separation with a constant recycle rate | — | 1998-06-09 |
| 5685992 | Process for regulating at least one fluid flow circulating in a simulated moving bed chromatographic separation loop | Choua Cohen, Robert Jacob, Gerard Bureau Du Colombier | 1997-11-11 |
| 5629467 | Process and apparatus for the separation of p-xylene in C.sub.8 aromatic hydrocarbons with a simulated moving bed adsorption and a crystallization | Claude Roux Guerraz, Than Nguyen Thanh | 1997-05-13 |
| 5582736 | Chromatographic simulated mobile bed separation process with dead volume correction using an increase in flow rate | Choua Cohen, Nicolas Couenne, Jean-Michel Toussaint | 1996-12-10 |
| 5578216 | Chromatographic simulated mobile bed separation process with dead volume correction using length reduction | Choua Cohen, Nicolas Couenne, Roger-Marc Nicoud | 1996-11-26 |
| 5569808 | Method for regulating a process for the separation of isomers of aromatic hydrocarbons having from 8 to 10 carbon atoms | Francois Cansell, Philippe Marteau, Nathalie Zanier | 1996-10-29 |
| 5431822 | Process for the chromatographic separation of a mixture of polyglycerols | Gabriel Terneuil, Daniel Lonchamp | 1995-07-11 |
| 5422007 | Method and apparatus for fractionation of a mixture on a simulated fluidized bed in the presence of a compressed gas, a supercritical fluid or a subcritical liquid | Roger-Marc Nicoud, Michel Perrut | 1995-06-06 |
| 5401476 | Apparatus for the separation of p-xylene in C.sub.8 aromatic hydrocarbons with a simulated moving bed adsorption and a crystallization | Claude Roux Guerraz, Than Nguyen Thanh | 1995-03-28 |
| 5326928 | Separation of aliphatic paraffins by adsorption | Eric Benazzi, Jean-Marie Basset, Agnes Choplin, Albert Theolier, Christophe Nedez | 1994-07-05 |
| 5284992 | Process and apparatus for the separation of p-xylene in C.sub.8 aromatic hydrocarbons with a simulated moving bed absorption and a crystallization | Claude Roux Guerraz, Than Nguyen Thanh | 1994-02-08 |
| 5114590 | Continuous process and device for the chromatographic separation of a mixture of at least three constituents into three purified effluents by means of a single solvent at two different temperatures and/or at two different pressures | Jean-Michel Toussaint, Gabriel Terneuil, Daniel Lonchamp | 1992-05-19 |
| 5093004 | Continuous process and apparatus for chromatographic separation of a mixture of at least three constituents into three purified effluents using two solvents | Jean-Michel Toussaint, Gabriel Terneuil, Daniel Lonchamp | 1992-03-03 |
| 4784753 | Deasphalting process comprising power recovery from the stage of separating deasphalted oil from the deasphalting solvent | Pierre Renard | 1988-11-15 |
| 4505880 | Process for the hydrodesulfurization and deoxygenation of a gas containing oxygen and organic sulfur compounds | Andre Deschamps, Jean Cosyns, Jean-Francois Le Page | 1985-03-19 |