Title (en)

ZIRCONIA PARTICLES

Title (de)

ZIRKONIUMOXID PARTIKEL

Title (fr)

PARTICULES DE ZIRCONE

Publication

EP 0711261 B9 20021113 (EN)

Application

EP 94922174 A 19940728

Priority

• AU 9400425 W 19940728
• AU PM024793 A 19930728
• AU PM024893 A 19930728

Abstract (en)

[origin: US6319868B1] Porous zirconia or zirconium-containing particles, methods of making such particles and methods of using such particles including modifications to the surface of the particles are described. The method comprises heating zirconia particles to provide a substantially homogeneously liquid melt, quenching the particles of melt to effect spinodal decomposition to provide quench particles of a silica rich phase and a zirconia rich phase, annealing the quenched particles to provide non porous solid particles of zirconia and silica and, leaching the silica from these particles to produce porous solid zirconia particles comprising a three dimensionally substantially continuous interpenetrating network of interconnected pores.

IPC 1-7

C04B 35/482; C04B 38/08; C04B 35/626; C04B 35/48; C01G 25/02; B01J 20/32; G01N 30/48; G01N 33/551

IPC 8 full level

B01J 20/281 (2006.01); B01J 20/06 (2006.01); B01J 20/32 (2006.01); C01G 25/02 (2006.01); C02F 1/28 (2006.01); C04B 35/14 (2006.01); C04B 35/48 (2006.01); C04B 35/626 (2006.01); C04B 38/00 (2006.01); C04B 38/08 (2006.01); C12N 11/14 (2006.01); G01N 30/88 (2006.01); G01N 33/551 (2006.01)

CPC (source: EP US)

B01J 20/06 (2013.01 - EP US); B01J 20/28004 (2013.01 - EP US); B01J 20/28057 (2013.01 - EP US); B01J 20/28078 (2013.01 - EP US); B01J 20/282 (2013.01 - EP US); B01J 20/283 (2013.01 - EP US); B01J 20/287 (2013.01 - EP US); B01J 20/305 (2013.01 - EP US); B01J 20/3085 (2013.01 - EP US); B01J 20/3204 (2013.01 - EP US); B01J 20/3219 (2013.01 - EP US); B01J 20/3225 (2013.01 - EP US); B01J 20/3259 (2013.01 - EP US); B01J 20/327 (2013.01 - EP US); B01J 20/3274 (2013.01 - EP US); B01J 20/328 (2013.01 - EP US); B01J 20/3282 (2013.01 - EP US); B01J 20/3293 (2013.01 - EP US); B01J 41/05 (2017.01 - EP US); B01J 41/07 (2017.01 - EP US); B01J 41/13 (2017.01 - EP US); C01G 25/02 (2013.01 - EP US); C04B 35/626 (2013.01 - EP US); C04B 38/009 (2013.01 - EP US); C04B 38/08 (2013.01 - EP US); G01N 33/551 (2013.01 - EP US); B01J 2220/42 (2013.01 - EP US); B01J 2220/54 (2013.01 - EP US); C01P 2004/03 (2013.01 - EP US); C01P 2004/61 (2013.01 - EP US); C01P 2006/12 (2013.01 - EP US); C01P 2006/16 (2013.01 - EP US)

C-Set (source: EP US)

1. C04B 38/009 + C04B 35/48 + C04B 38/04 + C04B 41/00 + C04B 41/4584
2. C04B 38/08 + C04B 35/48

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 9504012 A1 19950209; AT E216688 T1 20020515; CA 2168240 A1 19950209; DE 69430479 D1 20020529; DE 69430479 T2 20021128; DK 0711261 T3 20020812; EP 0711261 A1 19960515; EP 0711261 A4 19981014; EP 0711261 B1 20020424; EP 0711261 B9 20021113; JP H09503989 A 19970422; US 5910462 A 19990608; US 6319868 B1 20011120

DOCDB simple family (application)

AU 9400425 W 19940728; AT 94922174 T 19940728; CA 2168240 A 19940728; DE 69430479 T 19940728; DK 94922174 T 19940728; EP 94922174 A 19940728; JP 50544395 A 19940728; US 25953299 A 19990301; US 59160996 A 19960604