EP 1663860 A2 20060607 - METHOD FOR THE PURIFICATION OF SULPHURIC ACIDS
Title (en)
METHOD FOR THE PURIFICATION OF SULPHURIC ACIDS
Title (de)
VERFAHREN ZUR REINIGUNG VON SCHWEFELSÄUREN
Title (fr)
PROCEDE DE PURIFICATION D'ACIDES SULFURIQUES
Publication
Application
Priority
- EP 2004009398 W 20040823
- IT RM20030416 A 20030904
Abstract (en)
[origin: WO2005028362A2] The invention relates to a method for the purification of sulphuric acids, in particular, metal-containing sulphuric acids, characterised in that monodisperse ion-exchangers with chelating functional groups are applied.
IPC 1-7
IPC 8 full level
B01J 45/00 (2006.01); C01B 17/90 (2006.01); C25C 1/12 (2006.01)
CPC (source: EP KR US)
B01J 45/00 (2013.01 - EP US); C01B 17/00 (2013.01 - KR); C01B 17/90 (2013.01 - KR); C01B 17/904 (2013.01 - EP US); C01B 17/907 (2013.01 - EP US); C01B 17/908 (2013.01 - EP US); C25C 1/00 (2013.01 - KR); C25C 1/12 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2005028362A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005028362 A2 20050331; WO 2005028362 A3 20060126; AU 2004274134 A1 20050331; AU 2004274134 B2 20091015; CA 2537709 A1 20050331; CN 1878726 A 20061213; EP 1663860 A2 20060607; IT RM20030416 A0 20030904; IT RM20030416 A1 20050305; JP 2007533578 A 20071122; KR 20060079206 A 20060705; RU 2006109814 A 20071010; US 2008229882 A1 20080925
DOCDB simple family (application)
EP 2004009398 W 20040823; AU 2004274134 A 20040823; CA 2537709 A 20040823; CN 200480032757 A 20040823; EP 04764379 A 20040823; IT RM20030416 A 20030904; JP 2006525070 A 20040823; KR 20067004503 A 20060303; RU 2006109814 A 20040823; US 57045504 A 20040823