EP 1390301 A1 20040225 - NITRATE REDUCTION USING SO2
Title (en)
NITRATE REDUCTION USING SO2
Title (de)
NITRATREDUKTION DURCH SO2
Title (fr)
REDUCTION DES NITRATES A L'AIDE DE SO2
Publication
Application
Priority
- DE 10113113 A 20010316
- EP 0202382 W 20020305
Abstract (en)
[origin: US2002131924A1] Nitrate-containing (contaminated) solutions are reduced with SO2 gas in the presence of an at least equimolar amount of NH4+ or ammonium salt.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
C01C 1/24 (2013.01 - EP US); C02F 1/70 (2013.01 - EP US); C02F 2101/163 (2013.01 - EP US); C02F 2101/38 (2013.01 - EP US); Y10S 210/903 (2013.01 - EP US)
Citation (search report)
See references of WO 02074700A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
US 2002131924 A1 20020919; US 6761828 B2 20040713; DE 10113113 A1 20020919; EP 1390301 A1 20040225; PL 362760 A1 20041102; WO 02074700 A1 20020926
DOCDB simple family (application)
US 9655802 A 20020313; DE 10113113 A 20010316; EP 0202382 W 20020305; EP 02737876 A 20020305; PL 36276002 A 20020305