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1. FR2766389 - MOUSSE DE CARBURE DE SILICIUM A SURFACE SPECIFIQUE ELEVEE ET A CARACTERISTIQUES MECANIQUES AMELIOREES

Office
France
Application Number 9709743
Application Date 25.07.1997
Publication Number 2766389
Publication Date 29.01.1999
Grant Number 2766389
Grant Date 03.09.1999
Publication Kind B1
IPC
B01J 27/224
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
20Carbon compounds
22Carbides
224Silicon carbide
B01J 35/10
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
35Catalysts, in general, characterised by their form or physical properties
02Solids
10characterised by their surface properties or porosity
C04B 38/00
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME; MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
38Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
CPC
B01J 27/224
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
27Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
20Carbon compounds
22Carbides
224Silicon carbide
C04B 38/0022
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
38Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
0022obtained by a chemical conversion or reaction other than those relating to the setting or hardening of cement-like material or to the formation of a sol or a gel, e.g. by carbonising or pyrolysing preformed cellular materials based on polymers, organo-metallic or organo-silicon precursors
C04B 2111/0081
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2111Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
00474Uses not provided for elsewhere in C04B2111/00
0081as catalysts or catalyst carriers
C04B 2201/20
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
2201Mortars, concrete or artificial stone characterised by specific physical values
20for the density
C04B 38/00
CCHEMISTRY; METALLURGY
04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE
38Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
Applicants PECHINEY RECHERCHE
Inventors PRIN MARIE
OLLIVIER BENOIT
Priority Data 9709743 25.07.1997 FR
Title
(FR) MOUSSE DE CARBURE DE SILICIUM A SURFACE SPECIFIQUE ELEVEE ET A CARACTERISTIQUES MECANIQUES AMELIOREES
Abstract
(EN) The invention concerns a silicon carbide foam for use as a catalyst support, with high specific surface area of at least 5 m<2>/g and improved mechanical properties, in particular compressive strength more than 0.2 MPa's; it is obtained by impregnating an organic foam with a silicon suspension in a resin to which a hardening agent has been added, incomplete cross-linking of the resin, carbonising the organic foam and the resin and carburizing the silicon.
(FR)

Mousse de carbure de silicium pour application comme support de catalyseur, ayant une surface spécifique élevée d'au moins 5 m2/ g et des caractéristiques mécaniques améliorées, en particulier une résistance à la compression supérieure à 0, 2 MPa; elle est obtenue par imprégnation d'une mousse organique par une suspension de silicium dans une résine additionnée d'un durcisseur, réticulation incomplète de la résine, carbonisation de la mousse organique et de la résine et carburation du silicium.