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1. 发明专利

CA2491756A1 METHODE DE PREPARATION DE CATALYSEURS POUR CATALYSE HETEROGENE PAR IMPREGNATION EN PLUSIEURS ETAPES, CATALYSEURS ET UTILISATION DESDITS CATALYSEURS 未知
公开(公告)号：CA2491756A1
公开(公告)日：2004-01-22
申请号：CA2491756
申请日：2003-07-07
申请人： SICAT , UNIV PASTEUR , CENTRE NAT RECH SCIENT
发明人： ESTOURNES CLAUDE , KELLER NICOLAS , PHAM-HUU CUONG , PESANT LAURIE , LEDOUX MARC J , NHUT JEAN-MARIO
IPC分类号： B01D53/86 , B01D53/94 , B01J23/42 , B01J27/224 , B01J37/02 , B01J37/025
摘要： L'invention concerne un procédé d'imprégnation dit bi-phasique d'un support en .beta.-SiC à haute surface spécifique, ledit procédé comportant au moins les étapes suivantes : (a) une première étape d'imprégnation au cours de laquell e on imprègne au moins une fois ledit support par un agent polaire A, (b) une deuxième étape d'imprégnation au cours de laquelle on imprègne au moins une fois ledit support par un agent B moins polaire que l'agent A. Ce procédé permet la fabrication de nouveaux catalyseurs pour catalyse hétérogène.

2. 发明专利

DE602004019449D1 未知
公开(公告)号：DE602004019449D1
公开(公告)日：2009-03-26
申请号：DE602004019449
申请日：2004-10-13
申请人： SICAT , UNIV PASTEUR , CENTRE NAT RECH SCIENT
发明人： PHAM CHARLOTTE , PESANT LAURIE , BERNHARDT PIERRE , WOLF MICHEL , GARIN FRANCOIS , PHAM-HUU CUONG , LEDOUX MARC , KARTHEUSER MICHEL , VANHAECKE ESTELLE
IPC分类号： F01N3/022 , B01D53/94 , B01J23/40 , B01J27/224 , C04B38/00
摘要： The production of a filtering medium of a beta -SiC sponge with a specific surface of at least 5 m 2>/g and incorporating two zones with a different porosity distribution comprises: preparing a polyurethane sponge, incorporating two zones with different porosity foaming the polymer pyrolyzing the sponge to form a carbon sponge, activating the carbon sponge and exposing the activated carbon sponge to a SiO 2vapor to form a silicon carbide sponge. The production of a filtering medium of a beta -SiC sponge with a specific surface of at least 5 m 2>/g and incorporating two zones with a different porosity distribution comprises: (a) preparing a medium precursor of carbonizable sponge with an open honeycomb porosity, such as a polyurethane sponge, incorporating two zones with different porosity, that is impregnated with a hardenable resin; (b) reticulating the resin; (c) pyrolyzing the sponge to form a carbon sponge; (d) activating the carbon sponge by heating it under a sweeping of carbon dioxide at 700-1000 [deg] C; and (e) exposing the activated carbon sponge to a SiO 2vapor to form a silicon carbide sponge. Independent claims are also included for the following: (1) a component of beta -SiC sponge produced by the above process; and (2) a device with a catalytic filtering cartridge incorporating this filtering medium.

3. 发明专利

AT422491T 未知
公开(公告)号：AT422491T
公开(公告)日：2009-02-15
申请号：AT04817219
申请日：2004-10-13
申请人： SICAT , CENTRE NAT RECH SCIENT , UNIV PASTEUR
发明人： PHAM CHARLOTTE , PESANT LAURIE , BERNHARDT PIERRE , WOLF MICHEL , GARIN FRANCOIS , PHAM-HUU CUONG , LEDOUX MARC , KARTHEUSER MICHEL , VANHAECKE ESTELLE
IPC分类号： C04B38/00 , B01D53/94 , B01J23/40 , B01J27/224 , F01N3/022
摘要： The production of a filtering medium of a beta -SiC sponge with a specific surface of at least 5 m 2>/g and incorporating two zones with a different porosity distribution comprises: preparing a polyurethane sponge, incorporating two zones with different porosity foaming the polymer pyrolyzing the sponge to form a carbon sponge, activating the carbon sponge and exposing the activated carbon sponge to a SiO 2vapor to form a silicon carbide sponge. The production of a filtering medium of a beta -SiC sponge with a specific surface of at least 5 m 2>/g and incorporating two zones with a different porosity distribution comprises: (a) preparing a medium precursor of carbonizable sponge with an open honeycomb porosity, such as a polyurethane sponge, incorporating two zones with different porosity, that is impregnated with a hardenable resin; (b) reticulating the resin; (c) pyrolyzing the sponge to form a carbon sponge; (d) activating the carbon sponge by heating it under a sweeping of carbon dioxide at 700-1000 [deg] C; and (e) exposing the activated carbon sponge to a SiO 2vapor to form a silicon carbide sponge. Independent claims are also included for the following: (1) a component of beta -SiC sponge produced by the above process; and (2) a device with a catalytic filtering cartridge incorporating this filtering medium.

4. 发明专利

FR2860993B1 未知
公开(公告)号：FR2860993B1
公开(公告)日：2006-06-16
申请号：FR0407635
申请日：2004-07-08
申请人： SICAT , CENTRE NAT RECH SCIENT , UNIV PASTEUR
发明人： PHAM CHARLOTTE , PESANT LAURIE , BERNHARDT PIERRE , WOLF MICHEL , PHAM HUU CUONG , LEDOUX MARC JACQUES , KARTHAUSER MICHEL , VANHAECKE ESTELLE
IPC分类号： B01J37/02 , B01D53/94 , B01J23/40 , B01J27/224 , B01J37/08 , C04B38/00 , F01N3/021 , F01N3/022
摘要： The production of a filtering medium of a beta -SiC sponge with a specific surface of at least 5 m 2>/g and incorporating two zones with a different porosity distribution comprises: preparing a polyurethane sponge, incorporating two zones with different porosity foaming the polymer pyrolyzing the sponge to form a carbon sponge, activating the carbon sponge and exposing the activated carbon sponge to a SiO 2vapor to form a silicon carbide sponge. The production of a filtering medium of a beta -SiC sponge with a specific surface of at least 5 m 2>/g and incorporating two zones with a different porosity distribution comprises: (a) preparing a medium precursor of carbonizable sponge with an open honeycomb porosity, such as a polyurethane sponge, incorporating two zones with different porosity, that is impregnated with a hardenable resin; (b) reticulating the resin; (c) pyrolyzing the sponge to form a carbon sponge; (d) activating the carbon sponge by heating it under a sweeping of carbon dioxide at 700-1000 [deg] C; and (e) exposing the activated carbon sponge to a SiO 2vapor to form a silicon carbide sponge. Independent claims are also included for the following: (1) a component of beta -SiC sponge produced by the above process; and (2) a device with a catalytic filtering cartridge incorporating this filtering medium.

5. 发明专利

FR2860993A1 Silicon carbide-based catalytic sponge production for elimination of soot particles from exhaust gas of diesel engine 未知
公开(公告)号：FR2860993A1
公开(公告)日：2005-04-22
申请号：FR0407635
申请日：2004-07-08
申请人： SICAT , CENTRE NAT RECH SCIENT , UNIV PASTEUR
发明人： PHAM CHARLOTTE , PESANT LAURIE , BERNHARDT PIERRE , WOLF MICHEL , PHAM HUU CUONG , LEDOUX MARC JACQUES , KARTHAUSER MICHEL , VANHAECKE ESTELLE
IPC分类号： B01D53/94 , B01J23/40 , B01J27/224 , C04B38/00 , F01N3/022 , B01J37/02 , B01J37/08 , F01N3/021
摘要： The production of a filtering medium of a beta -SiC sponge with a specific surface of at least 5 m 2>/g and incorporating two zones with a different porosity distribution comprises: preparing a polyurethane sponge, incorporating two zones with different porosity foaming the polymer pyrolyzing the sponge to form a carbon sponge, activating the carbon sponge and exposing the activated carbon sponge to a SiO 2vapor to form a silicon carbide sponge. The production of a filtering medium of a beta -SiC sponge with a specific surface of at least 5 m 2>/g and incorporating two zones with a different porosity distribution comprises: (a) preparing a medium precursor of carbonizable sponge with an open honeycomb porosity, such as a polyurethane sponge, incorporating two zones with different porosity, that is impregnated with a hardenable resin; (b) reticulating the resin; (c) pyrolyzing the sponge to form a carbon sponge; (d) activating the carbon sponge by heating it under a sweeping of carbon dioxide at 700-1000 [deg] C; and (e) exposing the activated carbon sponge to a SiO 2vapor to form a silicon carbide sponge. Independent claims are also included for the following: (1) a component of beta -SiC sponge produced by the above process; and (2) a device with a catalytic filtering cartridge incorporating this filtering medium.

6. 发明专利

AU2003271797A8 Method for preparing catalysts for heterogeneous catalysis by multiple-phase impregnation, catalysts and use of said catalysts 未知
公开(公告)号：AU2003271797A8
公开(公告)日：2004-02-02
申请号：AU2003271797
申请日：2003-07-07
申请人： CENTRE NAT RECH SCIENT , UNIV PASTEUR , SICAT
发明人： KELLER NICOLAS , LEDOUX MARC J , NHUT JEAN-MARIO , PESANT LAURIE , ESTOURNES CLAUDE , PHAM-HUU CUONG
IPC分类号： B01D53/86 , B01D53/94 , B01J23/42 , B01J27/224 , B01J37/02 , B01J37/025
摘要： The invention concerns a method for so-called two-phase impregnation of a beta-SiC support with high specific surface area, said method comprising at least the following steps: (a) a first impregnating at least once said support with a polar agent A, (b) a second impregnating which consists in impregnating at least once said support with at least an agent B less polar than agent A. Said method enables the production of novel catalysts for heterogeneous catalysis.

7. 发明专利

FR2860992B1 未知
公开(公告)号：FR2860992B1
公开(公告)日：2006-06-16
申请号：FR0312085
申请日：2003-10-16
申请人： SICAT , CENTRE NAT RECH SCIENT , UNIV PASTEUR
发明人： PHAM CHARLOTTE , PESANT LAURIE , BERNHARDT PIERRE , WOLF MICHEL , GARIN FRANCOIS , PHAM HUU CUONG , LEDOUX MARC JACQUES
IPC分类号： B01J37/02 , B01D53/94 , B01J23/40 , B01J27/224 , B01J37/08 , C04B38/00

8. 发明专利

FR2860992A1 Production of beta silicon carbide foam filter material used for removing particulates from diesel engine exhaust gases comprises using polyurethane foam with at least two zones of different pore size distribution 未知
公开(公告)号：FR2860992A1
公开(公告)日：2005-04-22
申请号：FR0312085
申请日：2003-10-16
申请人： SICAT , CENTRE NAT RECH SCIENT , UNIV PASTEUR
发明人： PHAM CHARLOTTE , PESANT LAURIE , BERNHARDT PIERRE , WOLF MICHEL , GARIN FRANCOIS , PHAM HUU CUONG , LEDOUX MARC JACQUES
IPC分类号： B01D53/94 , B01J23/40 , B01J27/224 , C04B38/00 , B01J37/02 , B01J37/08
摘要： Production of beta silicon carbide foam filter material having specific surface area and comprising at least two zones of different pore size distribution comprises preparing polyurethane foam with at least two zones of different pore size distribution, impregnating foam with thermosetting resin, crosslinking resin by heating, pyrolyzing foam to form carbon foam, activating foam with carbon dioxide, and exposing foam to silicon monoxide vapor. Production of a beta silicon carbide foam filter material having a surface area of at least 5 m2>/g and comprising at least two zones of different pore size distribution comprises preparing a polyurethane foam with at least two zones of different pore size distribution, impregnating the foam with a thermosetting resin, crosslinking the resin by heating, pyrolyzing the foam to form a carbon foam, activating the foam with carbon dioxide at 700-1000[deg]C, and exposing the foam to silicon monoxide vapor. Independent claims are also included for the following: (1) the production of a beta silicon carbide foam filter material having a surface area of at least 5 m2>/g and comprising at least two zones of different pore size distribution by preparing a polyurethane foam with at least two zones of different pore size distribution, impregnating the foam with a suspension of silicon powder in a thermosetting resin, crosslinking the resin by heating, carbonizing the foam and resin and siliciding the resulting carbon by heating to 1600[deg]C or less, and removing residual carbon by oxidation at 650-950 [deg] C; (2) a beta silicon carbide foam having a surface area of at least 5 m2>/g and comprising at least two zones of different pore size distribution, produced by chemical transformation of a porous precursor comprising at least two blocks of different pore size distribution; and (3) a catalytic filter cartridge containing a beta silicon carbide foam filter material having a surface area of at least 5 m2>/g and comprising at least two zones of different pore size distribution and an active phase, the cartridge being surrounded by a solid wall of gas-impermeable material and equipped with an inlet for gases to be filtered and an outlet for gases from which particulates have been removed.

9. 发明专利

FR2842125A1 未知
公开(公告)号：FR2842125A1
公开(公告)日：2004-01-16
申请号：FR0208635
申请日：2002-07-09
申请人： SICAT
发明人： PHAM HUU CUONG , KELLER NICOLAS , LEDOUX MARC J , NHUT JEAN MARIO , PESANT LAURIE , ESTOURNES CLAUDE
IPC分类号： B01D53/86 , B01D53/94 , B01J23/42 , B01J27/224 , B01J37/02 , B01J37/025 , B01J37/08 , B01J37/18
摘要： The invention concerns a method for so-called two-phase impregnation of a beta-SiC support with high specific surface area, said method comprising at least the following steps: (a) a first impregnating at least once said support with a polar agent A, (b) a second impregnating which consists in impregnating at least once said support with at least an agent B less polar than agent A. Said method enables the production of novel catalysts for heterogeneous catalysis.

10. 发明专利

FR2842125B1 未知
公开(公告)号：FR2842125B1
公开(公告)日：2006-03-31
申请号：FR0208635
申请日：2002-07-09
申请人： SICAT
发明人： PHAM HUU CUONG , KELLER NICOLAS , LEDOUX MARC J , NHUT JEAN MARIO , PESANT LAURIE , ESTOURNES CLAUDE
IPC分类号： B01J37/025 , B01D53/86 , B01D53/94 , B01J23/42 , B01J27/224 , B01J37/02 , B01J37/08 , B01J37/18
摘要： The invention concerns a method for so-called two-phase impregnation of a beta-SiC support with high specific surface area, said method comprising at least the following steps: (a) a first impregnating at least once said support with a polar agent A, (b) a second impregnating which consists in impregnating at least once said support with at least an agent B less polar than agent A. Said method enables the production of novel catalysts for heterogeneous catalysis.

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