Global Patent Index - EP 1848663 A2

EP 1848663 A2 2007-10-31 - METHOD FOR PRODUCING SPHERICAL MIXED OXIDE POWDERS IN A HOT WALL REACTOR

Title (en)

METHOD FOR PRODUCING SPHERICAL MIXED OXIDE POWDERS IN A HOT WALL REACTOR

Title (de)

VERFAHREN ZUR HERSTELLUNG VON KUGELFÖRMIGEN MISCHOXID-PULVERN IN EINEM HEISSWANDREAKTOR

Title (fr)

PROCEDE POUR PREPARER DES POUDRES DE MELANGES D'OXYDES SE PRESENTANT SOUS FORME DE BILLES, DANS UN REACTEUR A PAROIS CHAUDES

Publication

EP 1848663 A2 (DE)

Application

EP 06700835 A

Priority

  • EP 2006000298 W
  • DE 102005007036 A

Abstract (en)

[origin: WO2006087061A2] The invention relates to a novel method for producing spherical mixed oxide powders with at least two constituents in a hot wall reactor. By using aqueous or organic saline solutions or suspensions with a limited salt or solid concentration in conjunction with additives in the form of surfactants and/or inorganic salts characterised by an exothermic decomposition reaction, a compact spherical particle morphology can be obtained, the average particle size being between 5 nm and < 10 ?m.

IPC 8 full level (invention and additional information)

C01B 13/34 (2006.01); C01F 7/16 (2006.01); C01F 17/00 (2006.01); C04B 35/44 (2006.01)

CPC (invention and additional information)

C01G 1/02 (2013.01); B82Y 30/00 (2013.01); C01B 13/34 (2013.01); C01F 7/162 (2013.01); C01F 17/0025 (2013.01); C04B 35/44 (2013.01); C04B 35/443 (2013.01); C04B 35/6267 (2013.01); C04B 35/63 (2013.01); C04B 35/632 (2013.01); C04B 35/6455 (2013.01); C08K 3/22 (2013.01); C09K 3/1454 (2013.01); C01P 2002/30 (2013.01); C01P 2002/32 (2013.01); C01P 2004/03 (2013.01); C01P 2004/32 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C01P 2006/82 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/449 (2013.01); C04B 2235/528 (2013.01); C04B 2235/5409 (2013.01); C04B 2235/5436 (2013.01)

Citation (search report)

See references of WO 2006087061A3

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

EPO simple patent family

DE 102005007036 A1 20060817; AU 2006215886 A1 20060824; CN 101119929 A 20080206; EP 1848663 A2 20071031; JP 2008535750 A 20080904; KR 20070103029 A 20071022; US 2008145306 A1 20080619; WO 2006087061 A2 20060824; WO 2006087061 A3 20070315

INPADOC legal status


2010-09-22 [18W] APPLICATION WITHDRAWN

- Effective date: 20100817

2008-05-21 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20080417

2008-05-21 [DAX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT (TO ANY COUNTRY) (DELETED)

2007-10-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20070627

2007-10-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR