EP 2464613 A1 20120620 - METHOD FOR PRODUCING A CERAMIC FOAM HAVING REINFORCED MECHANICAL STRENGTH FOR USE AS A SUBSTRATE FOR A CATALYST BED
Title (en)
METHOD FOR PRODUCING A CERAMIC FOAM HAVING REINFORCED MECHANICAL STRENGTH FOR USE AS A SUBSTRATE FOR A CATALYST BED
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES KERAMIKSCHAUMS MIT ERHÖHTER MECHANISCHER FESTIGKEIT FÜR EIN SUBSTRAT FÜR EIN KATALYSATORBETT
Title (fr)
PROCÉDÉ D'ÉLABORATION D'UNE MOUSSE CÉRAMIQUE À RÉSISTANCE MÉCANIQUE RENFORCÉE POUR EMPLOI COMME SUPPORT DE LIT CATALYTIQUE
Publication
Application
Priority
- FR 0955602 A 20090810
- FR 2010051482 W 20100715
Abstract (en)
[origin: WO2011018568A1] The invention relates to a method for manufacturing a ceramic foam, including the following steps: a) a first step of impregnating a polymer foam having an open porosity with a first suspension of ceramic particles in a solvent; b) a first step of drying the impregnated polymer foam at a temperature between the ambient temperature and 200°C and/or for a duration of between 30 min and 24 hrs; c) a heat treatment of the dried polymer foam comprising: (i) a step of thermally decomposing the dried polymer foam at a temperature of between 150 and 700°C and/or for a duration of between 30 min and 48 hrs; (ii) a step of unbinding the organic compounds contained in the polymer foam from step (i), at a temperature of between 200 and 900°C and/or for a duration of between 30 min and 48 hrs; and (iii) presintering the ceramic particles contained in the polymer foam from step (ii), at a temperature of between 900 and 1400°C and/or for a duration of between 30 min and 6 hrs; d) a second step of impregnating the polymer foam from step c) with a second suspension of ceramic particles in a solvent; e) a second step of drying the polymer foam impregnated in step d); f) a step of sintering the ceramic particles contained in the polymer foam dried in step e), at a temperature of between 1200 and 2000°C and/or for a duration of between 30 min and 6 hrs; the size of the ceramic particles of the second suspension being smaller than the size of the ceramic particles of the first suspension.
IPC 8 full level
B01J 35/04 (2006.01); C04B 38/06 (2006.01)
CPC (source: EP US)
C04B 35/111 (2013.01 - EP US); C04B 35/6263 (2013.01 - EP US); C04B 38/0096 (2013.01 - EP US); C04B 38/0615 (2013.01 - EP US); C04B 2111/0081 (2013.01 - EP US); C04B 2235/6028 (2013.01 - EP US); C04B 2235/614 (2013.01 - EP US); C04B 2235/96 (2013.01 - EP US)
Citation (search report)
See references of WO 2011018568A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
FR 2948935 A1 20110211; FR 2948935 B1 20120302; BR 112012002863 A2 20160322; CN 102471172 A 20120523; EP 2464613 A1 20120620; US 2012142526 A1 20120607; WO 2011018568 A1 20110217
DOCDB simple family (application)
FR 0955602 A 20090810; BR 112012002863 A 20100715; CN 201080034645 A 20100715; EP 10752014 A 20100715; FR 2010051482 W 20100715; US 201013389537 A 20100715