Global Patent Index - EP 1235746 A2

EP 1235746 A2 20020904 - PROCESS FOR THE CONTINUOUS TREATMENT OF FLUORINE-CONTAINING FUMED SILICA AND REACTOR FOR THE IMPLEMENTATION OF THIS PROCESS

Title (en)

PROCESS FOR THE CONTINUOUS TREATMENT OF FLUORINE-CONTAINING FUMED SILICA AND REACTOR FOR THE IMPLEMENTATION OF THIS PROCESS

Title (de)

VERFAHREN ZUR BEHANDLUNG VON FLUORHALTIGER KIESELSÄURE UND REAKTOR ZUR IMPLEMENTIERUNG DIESES PROZESSES

Title (fr)

PROCEDE DE TRAITEMENT CONTINU DE SILICE SUBLIMEE CONTENANT DU FLUOR ET REACTEUR POUR LA MISE EN OEUVRE DE CE PROCEDE

Publication

EP 1235746 A2 20020904 (EN)

Application

EP 00975067 A 20001017

Priority

  • SE 0002003 W 20001017
  • SE 9904046 A 19991109

Abstract (en)

[origin: WO0119725A2] Process and reactor for defluorinating fluorine-containing fumed silica by means of superheated water vapor in counter-flow at such a velocity that the silica does not fluidize, and at the same time increasing the thickening ability of the silica.

IPC 1-7

C01B 33/18

IPC 8 full level

B01J 8/00 (2006.01); B01J 8/08 (2006.01); B01J 8/12 (2006.01); C01B 33/18 (2006.01)

CPC (source: EP)

B01J 8/003 (2013.01); B01J 8/087 (2013.01); B01J 8/12 (2013.01); C01B 33/183 (2013.01); B01J 2208/00371 (2013.01); B01J 2219/185 (2013.01); B01J 2219/1943 (2013.01); C01P 2006/12 (2013.01); C01P 2006/22 (2013.01); C01P 2006/80 (2013.01)

Citation (search report)

See references of WO 0119725A2

Designated contracting state (EPC)

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

DOCDB simple family (publication)

WO 0119725 A2 20010322; WO 0119725 A3 20010802; AU 1317001 A 20010417; EP 1235746 A2 20020904; SE 9904046 D0 19991109

DOCDB simple family (application)

SE 0002003 W 20001017; AU 1317001 A 20001017; EP 00975067 A 20001017; SE 9904046 A 19991109