Global Patent Index - EP 0971855 A1

EP 0971855 A1 20000119 - CERIUM OXIDES, ZIRCONIUM OXIDES, Ce/Zr MIXED OXIDES AND Ce/Zr SOLID SOLUTIONS HAVING IMPROVED THERMAL STABILITY AND OXYGEN STORAGE CAPACITY

Title (en)

CERIUM OXIDES, ZIRCONIUM OXIDES, Ce/Zr MIXED OXIDES AND Ce/Zr SOLID SOLUTIONS HAVING IMPROVED THERMAL STABILITY AND OXYGEN STORAGE CAPACITY

Title (de)

CEROXIDE, ZIRKONOXIDE, CE/ZR MISCHOXIDE UND CE/ZR- FESTE LÖSUNGEN MIT VERBESSERTER THERMISCHER STABILITÄT UND SAUERSTOFFSPEICHERKAPAZITÄT

Title (fr)

OXYDES DE CERIUM, OXYDES DE ZIRCONIUM, OXYDES MIXTES Ce/Zr ET SOLUTIONS SOLIDES Ce/Zr PRESENTANT UNE STABILITE THERMIQUE ET UNE CAPACITE DE STOCKAGE D'OXYGENE AMELIOREES

Publication

EP 0971855 A1 20000119 (EN)

Application

EP 98914400 A 19980401

Priority

  • US 9806437 W 19980401
  • US 4263997 P 19970404
  • US 83763197 A 19970421

Abstract (en)

[origin: CA2285228A1] The production of cerium oxides, zirconium oxides, (Ce, Zr)O2 mixed oxides and (Ce, Zr)O2 solid solutions having improved particle size distribution, surface area, oxygen storage capacity and pore volume by the addition of an additive, such as an anionic or nonionic surfactant, during the formation of the or oxides or precursors thereof.

IPC 1-7

C01G 25/02; B01J 23/10; C07C 5/42; B01D 53/94

IPC 8 full level

B01D 53/94 (2006.01); B01J 23/10 (2006.01); C01G 25/02 (2006.01); C07C 5/42 (2006.01)

CPC (source: KR)

C01G 25/02 (2013.01); C01G 25/006 (2013.01); C01P 2002/54 (2013.01); C01P 2006/12 (2013.01); C01P 2006/90 (2013.01)

Designated contracting state (EPC)

AT BE DE ES FI FR GB IT SE

DOCDB simple family (publication)

BR 9807930 A 20010925; CA 2285228 A1 19981015; CN 1255105 A 20000531; EP 0971855 A1 20000119; KR 20010006020 A 20010115

DOCDB simple family (application)

BR 9807930 A 19980401; CA 2285228 A 19980401; CN 98804862 A 19980401; EP 98914400 A 19980401; KR 19997009098 A 19991004